1. NSW Syllabus
  2. Maths
  3. Stage 3
  4. Numbers and Algebra
  5. Fractions and Decimals
  6. MA3-7NA
  7. Fractions and Decimals 2
  8. Add and subtract decimals, with and without the use of digital technologies, and use estimation and rounding to check the reasonableness of answers (ACMNA128)

Add and subtract decimals with the same number of decimal places, with and without the use of digital technologies

1. 0.1 less, 0.1 more than 42.6
2. 0.1 less, 0.1 more than 98.1
3. 0.1 less, 0.1 more than 71.9
4. 0.1 less, 0.1 more than 85.3
5. 0.1 less, 0.1 more than 19.9
6. Take Away Tenths
7. Take Away Tenths
8. Take Away Tenths
9. Add A Tenth
10. 0.1 less, 0.1 more than 25.5
11. 0.1 less, 0.1 more than 33.8
12. 0.1 less, 0.1 more than 50.1
13. 0.1 less, 0.1 more than 42.9
14. 0.1 less, 0.1 more than 28.5
15. 0.1 less, 0.1 more than 99.9
16. Scoring decimal points: 19.3+2.3=*1.*
17. Use The pattern 1.4+1.5, 10.4+10.5, 104+105
18. Use The pattern 1.2+1.7, 10.2+10.7, 102 107
19. Use The pattern 1.4+1.4, 10.4+10.4, 104+104
20. Use The pattern 1.2+1.3, 10.2+10.3, 102+103
21. Use The pattern 1.2+1.4, 10.2+10.4, 102+104
22. Decimals get together: 5.8+4.2=?
23. Add it up decimals: 26.7+5.4
24. Add it up decimals: 56.7+7.6
25. Add it up decimals:64.6+8.9=73.5
26. Add it up decimals: 36.5+7.9
27. Add it up decimals: 69.4+7.7
28. Add it up: Addition of decimal numbers with regrouping
29. Add it up: Addition of decimal numbers with regrouping
30. Add it up: Addition of decimal numbers with regrouping
31. Add it up: Addition of decimal numbers with regrouping
32. Add it up: Addition of decimal numbers with regrouping
33. Add it up 148.82+76.59
34. Add it up 137.87+28.95
35. Add it up 146.29+11.72
36. Add it up 237.27+23.91
37. Add it up 348.26+56.32
38. Add these three numbers 6.2+1.6+7.2
39. Add these three numbers 4.8+5.2+8.7
40. Add these three numbers 2.5+9.5+2.7
41. Add these three numbers 7.3+1.7+8.1
42. Add these three numbers 3.3+2.5+2.7
43. Hundredths crossing: Add/subtract crossing a tenths/whole number bound
44. Hundredths crossing: Add/subtract crossing a tenths/whole number bound
45. Hundredths crossing: Add/subtract crossing a tenths/whole number bound
46. Hundredths crossing: Add/subtract crossing a tenths/whole number bound
47. Hundredths crossing: Add/subtract crossing a tenths/whole number bound
48. Hundredths crossing 79.33+5.99
49. Hundredths crossing 37.22+6.37
50. Hundredths crossing 156.54+6.77
51. Hundredths crossing 49.22+0.87
52. Hundredths crossing: Addition of numbers with 2 dec places
53. Hundredths crossing: Addition of numbers with 2 dec places
54. True/false mixed ops and decimals
55. Four's no chore: Add 4 clustered numbers
56. Four's no chore: Add 4 clustered numbers
57. Four's no chore: Add 4 clustered numbers
58. Hundredths crossing: Addition of numbers with 2 dp
59. Hundredths crossing: Addition of numbers with 2 dp
60. Hundredths crossing: Addition of numbers with 2 dp
61. Hundredths crossing: Addition of numbers with 2 dp
62. Hundredths crossing: Addition of numbers with 2 dp
63. Tenths Crossing: 40.4-0.5, 63.5-0.6, 30.6-0.7
64. Tenths Crossing: 20.2-0.4, 37.7-0.9, 17.5-0.9
65. Tenths Crossing: 26.5-0.8, 55.5-0.9, 74.3-0.7
66. Tenths Crossing: 44.4-0.8, 38.6-0.7, 23.2-0.5
67. Tenths Crossing: 88.5-0.8, 65.3-0.5, 43.6-0.9
68. Running the race: Addition and subtraction of distances
69. Crossing the line: Subtracting distances
70. Spot the difference 493.8&412.6
71. Spot the difference 248.7&218.3
72. Spot the difference 759.5&734.1
73. Spot the difference 695.6&623.2
74. Spot the difference 176.9&141.5
75. Shop till you drop: Calculate with money
76. Spot the Difference: Decimal subtraction calculation 2dp
77. Spot the Difference: Decimal subtraction calculation 2dp
78. Spot the Difference: Decimal subtraction calculation 2dp
79. Spot the Difference: Decimal subtraction calculation 2dp
80. Spot the Difference: Decimal subtraction calculation 2dp
81. Same or Different: Click all the boxes where the answer is <1
82. Same or Different: Click all the boxes where the answer is <1
83. Same or Different: Click all the boxes where the answer is <1
84. Same or Different: Click all the boxes where the answer is <1
85. Same or Different: Click all the boxes where the answer is <1
86. What An Eye-Full! 2 - calculate length and convert from m to cm
87. Up And Up: 1.6+0.7
88. Up And Up: 1.7+1.1
89. Up And Up: 1.9+0.3
90. Up And Up: 1.5+0.4
91. Up And Up: 1.7+0.4
92. Up And Up: 11.2+4.5
93. Up and Up: 13.4+6.3
94. Up and Up: 797.9+88.4=?
95. Up and Up: 892.4+419.8=?
96. Up and Up: 466.5+577.6=?
97. Up and Up: 457.9+124.8=?
98. Up and Up: 128.7+39.6=?
99. Up and Up: 74.9+22.6
100. Up and Up: 52.4+14.8
101. Up and Up: 29.4+63.8
102. Up and Up: 33.6+45.5
103. Up and Up: 64.7+13.5
104. Decimal Descent: 72.6-31.3
105. Decimal Descent: 68.4-27.6
106. Decimal Descent: 46.7-11.3
107. Decimal Descent: 85.5-41.1
108. Decimal Descent: 54.3-22.1
109. Up and Up: 15.2+3.9
110. Up and Up: 11.8+6.5
111. Up and Up: 13.6+4.7
112. Up and Up: 14.4+2.8
113. Up and Up: 10.9+5.3
114. Decimal Descent: 21.7-6.8
115. Decimal Descent: 34.2-6.5
116. Decimal Descent: 11.3-8.7
117. Decimal Descent: 40.6-8.7
118. Decimal Descent: 64.5-5.8
119. Up and Up: 76.04+9.09
120. Up and Up: 24.92+3.26
121. Up and Up: 65.39+6.21
122. Up and Up: 28.21+0.81
123. Up and Up: 13.45+7.05
124. Decimal Descent: 45.99-1.71
125. Decimal Descent: 7.63-1.51
126. Decimal Descent: 63.83-3.93
127. Decimal Descent: 17.62-16.51
128. Decimal Descent: 37.97-2.97
129. Decimal Descent: Difference between 2 decimal numbers (same no.dec. plces)
130. Decimal Descent: Difference between 2 decimal numbers (same no.dec. plces)
131. Decimal Descent: Difference between 2 decimal numbers (same no.dec. plces)
132. Decimal Descent: 153-151.5
133. Decimal Descent: Difference between 2 decimal numbers (same no.dec. plces)
134. Decimal Descent: Difference between 2 decimal numbers (same no.dec. plces)
135. Up and Up: 11.8+1.9
136. Up and Up: 13.2+2.9
137. Up and Up: 10.8+6.8
138. Up and Up: 12.7+4.4
139. Up and Up: 13.3+5.8
140. Decimals get together: 4.7+5.3=?
141. Decimals get together: 3.4+6.6=?
142. Decimals get together: 3.7+6.3=?
143. Up and Up: 130.45+60.56
144. Up and Up: 3.8+2.6=?
145. Up and Up: 21.4+4.5=?
146. Up and Up: 13.4+6.3=?
147. Up and Up: 14.4+7.3=?
148. Up and Up: 17.4+6.2=?
149. Up and Up: 16.3+7.5=?
150. Up and Up: 13.4+5.4=?
151. Tenths Tournament: 0.5 less than 7.5
152. Tenths Tournament: Take 0.5 from 0.9
153. Tenths Tournament: 6.9 minus 0.4
154. Tenths Tournament: 8.3 plus 0.2
155. Tenths Tournament: 0.6 more than 5.3
156. Tenths Tournament: Add 0.4 to 4.3
157. Tenths Tournament: 6.1 + 0.8
158. Tenths Tournament: 0.1 less than 9.4
159. Tenths Tournament: Take 0.4 from 1.8
160. Crossing the line: Subtracting distances
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