Grade 5
Foundations
Decimals in all four operations, multiplying fractions, volume, the coordinate plane, and the rules that decide which operation goes first.
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Decimals at Work
Unit 1 · Decimal Operations
0 of 7 units complete
- 1Unit 1Decimal Operations5 parts · about 14 min
Decimals at Work
Add, subtract, multiply and divide decimals — and finally see why multiplying 0.3 by 0.4 gives something SMALLER than both. Prices, recipes and a tricky shop puzzle.
- 2Unit 2Multiplying Fractions5 parts · about 14 min
A Part of a Part
Multiplying fractions means taking a part of a part. See it as a rectangle inside a square, find out why "straight across" works, and learn to predict whether an answer grows or shrinks.
- 3Unit 3Volume5 parts · about 14 min
Filling Boxes
Volume counts the cubes that fit inside. Build boxes, discover the shortcut, find boxes with the same volume, and work out the space inside an L-shaped room.
- 4Unit 4The Coordinate Plane5 parts · about 13 min
Treasure Maps and Grids
Two numbers pin down any spot on a grid: across, then up. Find buried treasure, draw shapes by coordinates, measure distances, and turn a number pattern into a straight line.
- 5Unit 5Order of Operations5 parts · about 12 min
Who Goes First?
What is 3 + 4 × 2? Calculators used to disagree! Learn the agreed order, play the tap-the-operation game, and untangle nested brackets.
- 6Unit 6Converting Units5 parts · about 15 min
Changing Units
Metres to kilometres, minutes to seconds, feet to inches. One simple question tells you whether to multiply or divide, and a famous space mistake shows why it matters.
- 7Unit 7Powers of Ten5 parts · about 14 min
The Sliding Digits
Multiply by 10 and every digit slides one place to the left. Watch it happen, count the zeros, and use powers of ten to write enormous and tiny numbers.