Page 29 - Mathematics_Std_4

Multiplication of two-digit numbers by a one-digit multiplier

Example 1

FOR ONLINE READING ONLY
62 ×= 4
Steps

1. Multiply 2 ones by 4: ×=2 4 8. Write 8 in the ones place.

2. Multiply 6 tens by 4: ×=6 4 24. Write 4 in the tens place.
Regroup 20 tens into 2 hundreds.

Therefore, 62 ×= 4 248.

Example 2

25 ×= 6

Steps
1. Multiply 5 ones by 6: ×=5 6 30. Write 0 in the ones place.

Shift 3 tens to the tens place.
2. Multiply 2 tens by 6: ×=2 6 12. Add tens: 2 + 3 = 5. Write

5 in the tens place. Regroup 10 tens into 1 hundreds.
Write 1 in the hundreds place.

Therefore, 25 ×=6 150.

Exercise 1

1. 41 ×=9 2. 64 ×=2 3. 38 ×=7

4. 56 ×=7 5. 49 ×=4 6. 72 ×=8

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07/11/2024 14:03:09
MATHEMATICS STD 4 PB 2024.indd 22
MATHEMATICS STD 4 PB 2024.indd 22 07/11/2024 14:03:09