Question

Maryam buys a reel of thread. There are 10 m of thread on the real. She uses 210 cm. How much is left on the reel in centimeters?

Answer 1

1. First convert the meters to centimeters by multiplying them by 100.
2. 10 * 100 = 1000cm
3. Subtract the centimeters  of reel used(210) from the centimeters of reel bought (1000)
4. 1000cm -210cm = 790               Ans