Question

Riya buys 4m 30cm of ribbon to decorate her desk. She used 2m 90cm to finish her decoration.

Answer 1

Answer:

Step-by-step explanation:

4 m 30 cm - 2m 90 cm

We can't do 30 - 90.

So we can : convert it.

1 m = 100 cm

4 m = 400 cm

400 + 30 = 430 cm.

2 m = 200 cm

200 + 90 = 290 cm

430 - 290 = 140 cm

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