Converting units (feet to inches, meters to centimeters) is just multiplying or dividing by the right number. Knowing your facts and how to multiply by 10 and 100 makes conversions fast.
Answer these 3, then press Show my path. No grade — this just points you to the right level.
1. How many inches are in 1 foot?
2. What is 4 × 10?
3. What is 300 ÷ 100?
Going to a smaller unit (feet → inches) makes more of them, so multiply. Going to a bigger unit (cm → m) makes fewer, so divide.
Your quick check picks one for you, but you can switch any time:
Level 0 Warm up the multiplying.
A. What is 2 × 12?
2 twelves: 12 + 12 = 24.
B. What is 5 × 10?
5 tens = 50.
C. What is 100 ÷ 100?
Anything divided by itself is 1.
Level 1 Do real conversions.
A. 2 feet = ___ inches? (2 × 12)
Smaller unit → multiply: 2 × 12 = 24.
B. 3 meters = ___ centimeters? (3 × 100)
3 × 100 = 300 cm.
C. 400 cm = ___ meters? (400 ÷ 100)
Bigger unit → divide: 400 ÷ 100 = 4.
Level 2 Stretch your conversions.
A. 4 feet = ___ inches? (4 × 12)
4 × 12 = 48 inches.
B. 36 inches = ___ feet? (36 ÷ 12)
36 ÷ 12 = 3 feet.
1. 1 foot = ___ inches?
There are 12 inches in 1 foot.
2. 500 cm = ___ meters? (500 ÷ 100)
500 ÷ 100 = 5 meters.
You've practiced exactly what Lesson 4-6 uses. Time to dive in.
Start Lesson 4-6 →