Square Numbers, Cube Numbers and Square Roots
Ellie the elephant builds a 3 by 3 square of tiles (3² = 9) and a 2 by 2 by 2 cube of blocks (2³ = 8). Learn what squared and cubed mean, work out 7² and the square root of 64, then find 4 cubed yourself. Plus: the number that is both a square and a cube.
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1:49Place Value to Millions
Leo the lion counts 3,452,618 visitors to the savanna. Learn what each digit is worth using a place value chart, how to read millions out loud, and how commas help. Then find the value of the 7 in 2,071,345.
2:01Rounding to the Nearest 10, 100 and 1,000
Hopper the frog rounds 3,472 to the nearest hundred on a number line. Learn the "5 or more, round up" rule, what happens with halfway numbers, and then round 6,238 to the nearest thousand yourself.
1:42Negative Numbers on a Number Line
It is 3°C in the morning and the temperature falls by 7 degrees. Percy the penguin counts down through zero on a number line to reach −4°C. Learn that falling means moving left and rising means moving right, then work out a temperature rise from −5°C yourself.