4th Maths : Term 1 Unit 4 : Measurements - Addition of measures

Measurements | Term 1 Chapter 4 | 4th Maths - Addition of measures | 4th Maths : Term 1 Unit 4 : Measurements

Chapter: 4th Maths : Term 1 Unit 4 : Measurements

Addition of measures

(i) Addition without Regrouping (ii) Addition with Regrouping

Addition without Regrouping EXAMPLE Add 21m 45cm and 68m 23cm.

step.1 Start from cm :(45+23)cm = 68cm
write 68 under the Centimetre column.

Step.2 Then add m : 21m + 68m = 89m
Write 89 under the metre column.

21m 45cm + 68m 23cm = 89m 68cm

Addition with Regrouping EXAMPLE Add 34m 91cm + 25m 42cm

Step 1: Start from cm 91cm + 42cm = 133cm
In 133cm, write 33 under cm column and then add this 1cm to the metre column.

Step 2: Add 1m + 34m + 25m = 60m

34m 91cm + 25m 42cm = 60m 33cm