Use the four operations, including formal written methods, applied to integers, decimals, proper and improper fractions, and mixed numbers, all both positive and negative

1. Number Detectives: a+b=17, ab=-60
2. Number Detectives: a+b=55, ab=484
3. Changing numbers: Addition/subtraction using negative integers
4. Changing numbers: Addition/subtraction using negative integers
5. Changing numbers: Addition/subtraction using negative integers
6. Changing numbers: Addition/subtraction using negative integers
7. Changing numbers: Addition/subtraction using negative integers
8. Make 20 13+-6+*
9. Make 15 3+19+*
10. Make 10 8+7+*
11. Make 20 8+-2+*
12. Make 15 21+-6+*
13. T/F double sided eqn incl -ive #
14. T/F double sided eqn incl -ive #
15. T/F double sided eqn incl -ive #
16. Add these three numbers: 13+-7+3
17. Add these three numbers: 9+2+-3
18. Add these three numbers: 9+8+-5
19. Add these three numbers: 16+-9+2
20. Add these three numbers: 20+-9+11
21. Make 13 18+34+*
22. Make -5 27+9+*
23. Make 29 37+20+*
24. Make -8 42+16+*
25. Make 32 29+12+*
26. Add these three numbers 84+-11+-16
27. Add these three numbers -19+55+-26
28. Add these three numbers -17+-28+34
29. Add these three numbers -41+-35+47
30. Add these three numbers 46+13+14
31. Make 29: 282 + -184 + *
32. Make 180: 369 + -75 + *
33. Make 126: 34+81 + *
34. Make 79: 104 + -53 + *
35. Make 115: -26 + 180 + *
36. True/false mixed ops and decimals
37. True/false mixed ops and decimals
38. True/false mixed ops and decimals
39. True/false mixed ops and decimals
40. True/false mixed ops and decimals
41. Double up and add 4.89
42. Add 3 numbers: 106 + 24 + -6
43. Add 3 numbers: -72 + 203 + -16
44. Add 3 numbers: -58 + -245 + 10
45. Add 3 numbers: -158 + 101 + 69
46. Add 3 numbers: -36 + -72 + 17
47. N/D Find the mystery negative: Addition/subtraction of negative integers up to +/-100
48. N/D Find the mystery negative: Addition/subtraction of negative integers up to +/-100
49. N/D Find the mystery negative: Addition/subtraction of negative integers up to +/-100
50. N/D Find the mystery negative: Addition/subtraction of negative integers up to +/-100
51. N/D Find the mystery negative: Addition/subtraction of negative integers up to +/-100
52. N/D Find the mystery negative: Addition/subtraction of negative integers up to +/-100
53. N/D Find the mystery negative!: Subtraction with single-digit negative integers
54. N/D Find the mystery negative!: Subtraction with single-digit negative integers
55. N/D Find the mystery negative!: Subtraction with single-digit negative integers
56. N/D Find the mystery negative!: Subtraction with single-digit negative integers
57. N/D Find the mystery negative!: Subtraction with single-digit negative integers
58. N/D Find the mystery negative!: Subtraction with single-digit negative integers
59. N/D Find the mystery negative!: Subtraction with single-digit negative integers
60. N/D Find the mystery negative!: Subtraction with single-digit negative integers
61. N/D Find the mystery negative!: Subtraction with single-digit negative integers
62. N/D Find the mystery negative!: Subtraction with single-digit negative integers
63. N/D Find the mystery negative!: Subtraction with single-digit negative integers
64. N/D Find the mystery negative!: Subtraction with single-digit negative integers
65. Write the missing number: 20= -10, 17, ?
66. Write the missing number: 20=-45, 30, ?
67. Write the missing number: 20= -15, 25, ?
68. Write the missing number: 20= -18, -24, ?
69. Write the missing number: 20= -8, -2, ?
70. Find the Mystery Number 176- * =-190
71. Find the Mystery Number 384- * =407
72. Find the Mystery Number -769- * =-732
73. Find the Mystery Number 245- * =263
74. Same or Different: Click all the boxes where the answer is <1
75. Same or Different: Click all the boxes where the answer is <1
76. Same or Different: Click all the boxes where the answer is <1
77. Same or Different: Click all the boxes where the answer is <1
78. Same or Different: Click all the boxes where the answer is <1
79. Put a number on the yellow box -41.5+23.7+ * =-14.4
80. Put a number on the yellow box -26.7+-15.9+ * =-17.5
81. Put a number on the yellow box -17.6+-11.9+ * =26.2
82. Put a number on the yellow box -10.5+-18.9+ * =12.8
83. T/F 418-384=22+12
84. T/F 568-519=23+26
85. Time travels: Calculate dates BC
86. Spot the Difference: Calculate the difference between number pairs incl negative integers
87. Spot the Difference: Calculate the difference between number pairs incl negative integers
88. Spot the Difference: Calculate the difference between number pairs incl negative integers
89. Spot the Difference: Calculate the difference between number pairs incl negative integers
90. Hitting the big times: *3 *55 x * = 6* 465
91. Hitting the big times: 44626 x 6 = *6**5*
92. Hitting the big times: **457 x 4 = 93 **8
93. Hitting the big times: 82 *4* x 20 = 1 **6 94*
94. Hitting the big times: 51* *37 x 3 = * *48 71*
95. Number Production: Complete each number sentence
96. Number Production: Complete each number sentence
97. Number Production: Complete each number sentence
98. Times Machine: Write the correct multiplier on the times machine
99. Times Machine: Write the correct multiplier on the times machine
100. Times Machine: Write the correct multiplier on the times machine
101. Times Machine: Write the correct multiplier on the times machine
102. Times Machine: Write the correct multiplier on the times machine
103. Times Machine x -50
104. Times Machine x -12
105. Times Machine x -6
106. Times Machine x -80
107. Times Machine x -30
108. Hitting the Big Times: Write missing numbers in vertical large number multiplicatiions
109. Hitting the Big Times: Write missing numbers in vertical large number multiplicatiions
110. Hitting the Big Times: Write missing numbers in vertical large number multiplicatiions
111. Number detectives *x-4=-24
112. Number detectives *x-4=-28
113. Number detectives *x3=-27
114. Number detectives *x5=30
115. Times chain 1.4x6= * x0.1= *
116. Times chain 15x0.3= * x2= *
117. Times chain 11.1x0.4= * x2= *
118. Times chain 0.4x40= * x0.2= *
119. Number detectives -6x-2=*
120. Number detectives 3x-7=*
121. Number detectives 5x-6=*
122. Number detectives -3x-3=*
123. Number detectives 6x*=-18
124. Number detectives -3x*=12
125. Number detectives -6x*=24
126. Number detectives -2x*=-16
127. Multi-Multiplication 35.8 x1000 x500 x0.01 x0.1
128. Multi-Multiplication-7 x3 x-3 x-2 x-5
129. Multi-Multiplication 6 x-5 x9 x-7 x-4
130. Multi-Multiplication 3 x3 x30 x300 x0.3
131. Multi-Multiplication 4.8 x50 x-5 x0.5 x-55
132. Number detectives sum of 7x11 and 2x15
133. Number detectives sum of 5x25 and 3x5
134. Number detectives sum of 6x8 and 20x10
135. Number detectives sum of 25x4 and 8x9
136. Number detectives *x7=-42
137. Number detectives *x-9=-45
138. Number detectives 0.3x*=0.06
139. Decimal times: Write missing numbers in vertical decimal multiplication
140. Decimal times: Write missing numbers in vertical decimal multiplication
141. Decimal times: Write missing numbers in vertical decimal multiplication
142. Detective Duck finds the mystery suspect: Understand multiplication terminology
143. Find the Mystery Number: Solve multiplication sentences with a symbol for an unknown number
144. Find the Mystery Number: Solve multiplication sentences with a symbol for an unknown number
145. Find the Mystery Number: Solve multiplication sentences with a symbol for an unknown number
146. Ee-i-ee-i-o!: Calculate total number of animals after 2 seasons
147. Sum it up: Penny and Posie
148. Sum it up: Ladies' Society For Long Lunches
149. Decimal Times: Write missing numbers in vertical multiplication
150. Decimal Times: Write missing numbers in vertical multiplication
151. My Fair Sharer: Outputs (/ -9)
152. My Fair Sharer: Write the correct division setting
153. True or false: -72 / -9 = 8
154. True or false: 7 = -84 / -12
155. True or false: -96 / 12 = -24 / 3
156. True or false: 26.5 / 2 = 13.25
157. True or false: -6.5 / 2 = -3.25
158. My fair sharer: / -9
159. My fair sharer: / -12
160. True or False: -21/-7=3
161. True or False: -156/-12=13
162. True or False: -96/12=-8
163. True or False: 15.8/4=3.95
164. Sum it up: Identify the correct calculation
165. My Fair Sharer /-7
166. My Fair Sharer /-4
167. Great Divide: Perform multiple division operations on a number
168. Great Divide: Perform multiple division operations on a number
169. True/false: -30.6 / -0.3 = 102
170. True/false: -555 / 5 = -111
171. Division chains: Write missing numbers in division chains
172. Division chains: Write missing numbers in division chains
173. Division chains: Write missing numbers in division chains
174. Division chains: Write missing numbers in division chains
175. Sum it up: Prue's party
176. Find the Mystery Number: Solve division sentences with a symbol for an unknown number
177. Find the Mystery Number: Solve division sentences with a symbol for an unknown number
178. True or False: 1980/44=45
179. True or False: 792/0.44=1800
180. Find the Mystery Number: Solve division sentences with a symbol for an unknown number
181. Find the Mystery Number: Solve division sentences with a symbol for an unknown number
182. Find the Mystery Number: Solve division sentences with a symbol for an unknown number
183. Divide a hundred 136/*=-340, 512/-0.8=*
184. Divide a Thousand 3660/-0.04=*
185. Divide a Thousand 5058/-0.06=*
186. Divide Ten Thousand 39 200/700=*
187. Division Chains: Write missing numbers in division chains
188. Sum it up: Granny Smith's knitting
189. Sum it up: Max's Xtreme Skateboards
190. Maths Production 800,8,56
191. Number Production 1.6,320,8
192. Same or different: click all the boxes with the same answers
193. Same or different: click all the boxes with the same answers
194. My Fair Sharer: Write correct division setting
195. My Fair Sharer: Write missing inputs and outputs
196. My Fair Sharer: Write missing inputs and outputs
197. Fractions Divide: 1/4÷1/2
198. Fractions Divide: 1/2 / 3/4
199. The truth about fractions: 24÷1/4
200. Fractions Divide: 10 / 1/6
201. The truth about fractions: 10÷5/6
202. Circular Logic: How many arc-seconds in a circle?
203. Captain Jones's Challenge - Develop then calculate an algebraic expression
204. Captain Jones's Challenge - Develop then calculate an algebraic expression
205. Captain Jones's Challenge - Develop then calculate an algebraic expression
206. Logical Leaps - sum and product
207. Natural Numbers - sum of 1st 13 Fibonacci numbers
208. What An Eye-Full! 3 - calculate speed of construction given total distance and time
209. Phil's Chocolate Conundrum - calculate number of units given individual and gross masses, g and kg
210. Detective Duck: Write the fraction halfway between two other fractions
211. Propelling Pounds: Money multiplication
212. Cycling with Chris: Add/subtract in miles
213. Lord Percibald improves: Money calculations
214. Ahoy there, me hearties! Money division
215. Cockroach count: Money addition and division
216. The wait before the game: Money subtraction and division
217. Sum it up: Put the correct number statement on the question board
218. Shifting groceries: Calculate wages from rates of pay
219. Sent To Coventry: Multiply distances
220. Show times: Money multiplication
221. Best In Show: Money division
222. A whizz-bang show: Money multiplication and division
223. Out on a limb: Money multiplication
224. Shoes shine: Money multipication and subtraction
225. Spectacular spending: Money multiplication
226. Land of the long vacation: Dollar exchange rates
227. Sum it up: Identify the correct calculation to solve a problem
228. Sum it up: Identify the correct calculation to solve a problem (1)
229. Sum It Up - Zoo Time: number sentence expressing cost
230. To Market: calculate sell price
231. To Market 2: calculate profit/loss
232. Rob's Shed: calculate mass, quantity and cost