Page 76 - Maths Class 03

Example : If a box has 64 clips, how many clips are there in 2 boxes ?

Estimated Estimate 64 to the nearest 10, i.e., 60. Actual
6 0 Estimated product = 60 × 2 = 120 clips. 6 4

× 2 Actual product = 64 × 2 = 128 clips. × 2
1 2 0 Actually, there are 128 clips in the boxes. 1 2 8

Practice - 4.6
Practice - 4.6
Practice - 4.6
Practice - 4.6
First, estimate how much your answer should be. Then, calculate.

1. 19 × 35 2. 44 × 43 3. 45 × 25

4. 42 × 32 5. 24 × 24 6. 56 × 28

7. 32 × 45 8. 37 × 26 9. 52 × 24

10. 47 × 36 11. 36 × 25 12. 46 × 44

Word Problems

Example : In a village, each farmer has 16 cattle. There are 18 farmers in the

village. How many cattle are there in the village ?

Number of cattle = 16 H T O

Number of farmers = 18 4
1 6
Total number of cattle = ? x 1 8

1 2 8

+ 1 6 0

2 8 8

\ There are 288 cattle in the village.

Practice - 4.7
Practice - 4.7
Practice - 4.7
Practice - 4.7
1. There are 24 folders and each has 56 sheets of paper inside it. How many
sheets of paper are there altogether ?

2. A carton holds 24 packets of biscuits. Each packet has 12 biscuits. How many

biscuits can be packed in 45 such cartons ?

Mathematics-3 76