Work out the following problem sums.
Show your working and statement clearly.
1 Jasmine had a piece of string 85 cm long.
She had 60 cm left after used it to tie a bunch of roses.
How many centimeters of string did she use to tie a bunch of roses?

2 John needs 545 cm of rope to build a bridge.
He has only 455 cm of rope.
How many centimeters of rope does he need?

3 A table is 150 cm tall.
A stool is 115 cm tall.
How much taller is the table than the stool.

4 The height of plant A is 598 cm.
The height of plant B is 202 cm taller than plant A.
Find the height of plant B.

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