How many 1 cm cubes fill Bruno the bear’s box, 4 cm long, 3 cm wide and 2 cm high? Count one layer (4 × 3 = 12), then multiply by the number of layers to get 24 cm³. Learn the formula length × width × height, find the volume of a fish tank yourself, and work out a missing length.
Leo the lion runs 2.4 km. How many metres is that? Use the unit ladder (km, m, cm, mm) to see when to multiply and when to divide: 2.4 km = 2,400 m and 350 cm = 3.5 m. Then change 2.5 litres into millilitres yourself, and learn the big-to-small, multiply rule.
Shelly the turtle’s train leaves at 14:35 and arrives at 16:10. Learn to read the 24-hour clock and find how long a journey takes by counting up on a time line, not by subtracting. Then work out a bus journey from 10:50 to 13:05.
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.
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