Page 57 - ICSE Math 4

Solu on: (a) 76 × 37

Step 1: Mul ply the mul plicand by H T O
the digit in the ones place of
7 6
the mul plier.
× 3 7
76 × 7 ones = 76 × 7 = 532
5 3 2

Step 2: Mul ply the mul plicand by H T O

the digit in the tens place of 7 6
the mul plier.
× 3 7
76 × 3 tens = 76 × 30 = 2,280
5 3 2

2 2 8 0

Step 3: Add the products H T O
2 1 (carry over of 76 × 30)
obtained in step 1
4 (carry over of 76 × 7)
and step 2. 7 6
532 + 2,280 = 2,812 × 3 7

So, 76 × 37 = 2,812. 1
5 3 2 (76 × 7)

+ 2 2 8 0 (76 × 30)

2 8 1 2

(b) 475 × 234
H T O
1 1 (carry over of 475 × 200)
2 1 (carry over of 475 × 30)
3 2 (carry over of 475 × 4)
4 7 5
Mental Maths
× 2 3 4
Match the products.
1 1
1 9 0 0 (475 × 4) (a) 7,300 (i) 28 × 100
(b) 460 (ii) 105 × 0
1 4 2 5 0 (475 × 30)
(c) 1,290 (iii) 73 × 100
+ 9 5 0 0 0 (475 × 200) (d) 2,380 (iv) 15 × 5,000

1 1 1 1 5 0 Product (e) 14 × 2 × 100 (v) 23 × 20
(f) 0 × 105 (vi) 1290 × 1
So, 475 × 234 = 1,11,150.
(g) 75,000 (vii) 238 × 10

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