# Step 4

Difficulty 4

 1 Changing numbers 56 293 x 0.1, + 8 459, div. by 0.01 2 Changing numbers 8025 x 20, + 16 986, div. by 0.5 3 True/false mixed ops and decimals 4 True/false mixed ops and decimals 5 Double up and add 3.76 6 Hundredths crossing: Addition of numbers with 2 dp 7 Hundredths crossing: Addition of numbers with 2 dp 8 Hundredths crossing: Addition of numbers with 2 dp 9 Scoring Decimal Points: Write missing numbers in vertical subtraction 10 Scoring Decimal Points: Write missing numbers in vertical subtraction 11 Scoring Decimal Points: Write missing numbers in vertical subtraction 12 Subtraction Chains: Subtractions with 2 dp 13 Subtraction Chains: Subtractions with 2 dp 14 Fractionally Different: Click all fractions greater than one-third 15 Truth about fractions: Select the larger number 82/40 or 2.5 16 Select decimal number and percentage corresponding to a common fraction 17 Truth about fractions: Click the smaller fraction 7/8 or 90% 18 A taxing question: Determine which is the larger amount of tax paid 19 Golden fleece: Calculate percentage discount 20 Screen saver: Calculate percentage discount 21 Size Wise: Click the largest fraction 22 Size Wise: Click the largest fraction 23 A long trip home: Calculate a total from a percentage 24 A big bill: Calculate a total from a percentage 25 Well-watered campers: Calculate a total from a percentage 26 More or less fractions: Click the expression which is lesser in value 27 Persistently Perusing Percentages: Write a percentage as a decimal number 28 Persistently Perusing Percentages: Write a percentage as a decimal number 29 A tasty sweetener: Calculate a percentage increase of a quantity or number 30 Fancy pants: Calculate original price before discount 31 Pocketing the savings: Calculate original price before discount. 32 Falling Prices, Rising trade: Calculate original price given percentage discount 33 Rock on: Calculate a discount as a percentage 34 As time goes by : Calculate the first quantity given a final figure and percentage increase. 35 Footy fever: Calculate a new price given the old price and percentage increase 36 The bread and butter issue: Calculate a price difference as a percentage of one amount 37 Blow your own trumpet: Calculate a price increase as a percentage of the former price 38 You can bank on it: Calculate simple interest 39 Interesting figures: Calculate simple interest 40 Sum it up: Identify the correct calculation to solve a problem 41 Sum it up: Identify the correct calculation to solve a problem 42 Sum it up: Identify the correct calculation to solve a problem 43 Sum it up: Identify the correct calculation to solve a problem 44 Fearlessly fathoming fractions: Write 96% as a fraction in its lowest terms 45 Percentage Wise: 90% of ?=3510 46 Percentage Wise: 560% of 12 litres=? 47 Percentage Wise: Increase 320 by 80% 48 Percentage Wise: Increase 4L by 1% 49 Percentage Wise: Decrease 3L by 60% 50 The truth about fractions: Select the larger fraction 51 The truth about fractions: Select the smaller fraction 52 More or less: Select the larger number 34% of 75or 5/7 of 85 53 More or less: Select the larger number 82% of 40 or 5/4 of 25 54 More or less: Select the larger fraction 5 out of 16 or 8/25 55 You can bank on it: Compare interest rates from capital and dividend figures 56 Buttering up the customers: Price comparison 57 Fast shoe shuffle: Calculate prices using percentage increase and decrease 58 Detective Duck 59 Detective Duck 60 Detective Duck 61 Detective Duck: Addition, subtraction of fractions 62 Swordfish Pasta : Increasing ratios in cooking 63 Bean-speak!: Calculate relative proportions of red jelly beans 64 Under the umbrella: Click the lower proportion 65 Singing a scale: Calculate numbers from a ratio 66 A policeman's lot: Write a number as a proportion of another number 67 Scales to scale: Describe the relationship between two measurements 68 Charlotte counts coffees: Write numbers in a ratio relationship 69 Cellular population: Write numbers in a ratio relationship 70 Legal scale: Investigate proportional relationships 71 Music by scale: Identify proportional relationships 72 Music by scale: Investigate proportional relationships 73 Dig for the food facts: Investigate proportional relationships 74 Building to scale: Identify proportional relationships 75 Painting to scale: Investigate proportional relationships 76 Tiling to scale: Investigate proportional relationships 77 Ball Park Figures: Investigate proportional relationships 78 Shoot for the stars: Investigate ratio 79 Triangular numbers: Calculate lengths using triangle ratios 80 Triangular numbers: Calculate lengths using triangle ratios 81 Triangular numbers: Calculate lengths using triangle ratios 82 Triangular numbers: Calculate lengths using triangle ratios 83 Triangular numbers: Calculate lengths using triangle ratios 84 Brain scale: Divide a sum of money in a given ratio 85 Industrial relations: Calculate a sum of money in a given proportion 86 Industrial relations: Calculate a new pay rate in proportion to the previous rate 87 Patti's Party Punch: Calculate quantities by ratio 88 Patti's Apple Crumble: Calculate quantities by ratio 89 Be a sport!: Determine which is the larger proportion 90 Fair Dinkum ratios: Write quantities in ratio form 91 Charity knocks: Write quantities in ratio form 92 Charity knocks: Write quantities in ratio form 93 Scales of justice: Divide a sum of money in a given ratio 94 Charity knocks: Write measurements in ratio form 95 Fallling Scale: Express a quantity as a proportion of another quantity 96 WonderLand Maths: Ratio calculations 97 Run to scale: Calculate a distance from a ratio 98 Mixing by scale: Calculate quantities from a given percentage 99 ScreamWorld: Calculate numbers from ratios and percentages 100 Pies and Fries: Calculate a quantity from a ratio 101 WonderLand Maths: Ratio calculations 102 WonderLand Maths: Ratio calculations 103 WonderLand Maths: Ratio calculations 104 WonderLand Maths: Ratio calculations 105 WonderLand Maths: Ratio calculations 106 Gone to pot: Calculate using ratios 107 Chocolate disaster: Divide a quantity according to a given ratio 108 WonderLand Maths: Ratio calculations 109 WonderLand Maths: Ratio calculations 110 WonderLand Maths: Ratio calculations 111 Liquid display: Write three volumes as a ratio 112 Length wise: Write two measurements as a ratio 113 Massive ratios: Write two weights as a ratio 114 Fluid mechanics: Write two volumes as a ratio 115 Population Proportions: Investigate proportional relationships 116 Ancient Scale: Investigate proportional relationships 117 Don't Hurry, Be Happy: Calculate speed from distance and time 118 Starfish scramble: Calculate speed from distance and time 119 Building blocks: Investigate proportional relationships 120 A problem of geometric proportions: Investigate relationship between perimeter and area of rectangle 121 Triangular numbers: Investigate triangle ratios 122 Triangular numbers: Investigate triangle ratios 123 Trinagular numbers: Investigate triangle ratios 124 Trinagular numbers: Investigate triangle ratios 125 Apres moi le deluge: Calculate rainfall from rate of precipitation 126 Apres moi le deluge: Calculate rainfall from rate of precipitation 127 Gauging the Rainfall: Investigate ratio and proportion 128 Finishing the fence: Calculate time taken from rate of work 129 Finishing the fence: Calculate time taken from rate of work 130 Powering Down: Calculate cost from ratios 131 Counting Beans: Calculate proportions from a given ratio 132 Budding Buddies: Calculate from ratios 133 Food Rationing: Calculate quantities from ratios 134 Gold Index: Calculate cost from ratios 135 Coffee Calculations: Calculate quanitites from ratios 136 Mouse multiplication: Express relationships between quantities as a ratio 137 Swim in the fast lane: Calculate speed from a ratio 138 Theories of Relativity: Express relationships as a ratio in its simplest form 139 Theories of Relativity: Calculate amounts from a ratio 140 Theories of Relativity: Calculate amounts from a ratio 141 Theories of Relativity: Calculate amounts from a ratio 142 Map Maths: Interpret map scale and write distances as a ratio 143 Cup Fever: Express relationships between quantities as a ratio 144 Off The Scale: Calculate new temperature given a rate of change. 145 Just Deserts: Calculate rainfall from a ratio 146 Figuring the Fences: Investigate relationship between perimeter and area 147 It never rains...: Calculate rainfall from a ratio 148 Boat rations: Calculate with reference to man-days of work 149 Running to scale: Express a relationship between two numbers as a ratio 150 Tackling the heights: Calculate a dimension from a scale model 151 Where There's A Will: Express a relationship between quantities as a ratio 152 Food for thought: Calculate quantities from a ratio 153 Patti's Lemon Custard Pudding: Write quantities in ratio form 154 Patti's Apple Crumble: Write quantities in ratio form 155 Patti's Omelette: Write quantities in ratio form 156 Patti's Strawberry Sauce: Write quantities in ratio form 157 Patti's Steamed Fruit Pudding: Write quantities in ratio form 158 Patti's Tuna Pie: Write quantities in ratio form 159 Patti's Lasagne: Write quantities in ratio form 160 Patti's Patty Cakes: Write quantities in ratio form 161 Patti's Party Punch: Write quantities in ratio form 162 Circular Logic: How many arc-seconds in a circle? 163 Detective Duck: Write a fraction as a percentage 164 Detective Duck: Write a fraction as a percentage 165 Detective Duck: Write a fraction as a percentage 166 Detective Duck: Write a fraction as a percentage 167 Detective Duck: Write a fraction as a percentage 168 Detective Duck: Write a fraction as a percentage 169 Detective Duck: Write a fraction as a percentage 170 Detective Duck: Calculate numbers from percentages 171 Detective Duck: Write a fraction as a percentage 172 Detective Duck: Write a fraction as a percentage 173 Detective Duck: Solve a fractional number pattern 174 Detective Duck: Write one number as a fraction of another 175 Detective Duck: Write the fraction halfway between two other fractions 176 Up and Up: 466.5+577.6=? 177 Fraction Quest: Click the larger number 33/10 or 3.2 178 Gone to pot: Calculate using ratios 179 Gone to pot: Calculate using ratios 180 Boat rations: Calculate with reference to man-days of work 181 Boat rations: Calculate with reference to man-days of work 182 Where There's A Will: Express a relationship between quantities as a ratio (1)