Page 62 - Start Up Mathematics_4

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Multiplication

Let’s Recall ...

• Multiplication means the repeated addition of similar groups of things.
It is also called the product of two numbers.

• Multiplicand × Multiplier = Product
↓ ↓ ↓
(Number to (Number by (Answer
be multiplied) which we or result)
multiply)
• In multiplication by expanded notation method, write the multiplicand in its expanded
form and multiply each term of the expanded form by the multiplier. Add the products
obtained to get the final answer.

• The numbers being multiplied are called factors of the product.

1 Find the product.

(a) 78 × 2 (b) 423 × 7 (c) 982 × 8 (d) 54 × 16

(e) 97 × 32 (f) 76 × 84 (g) 75 × 26 (h) 48 × 19

2 Find the product using expanded notation method.

(a) 67 × 6 (b) 82 × 4 (c) 31 × 9 (d) 44 × 7

3 Put the correct sign <, > or =.

(a) 24 × 17 12 × 14 (b) 33 × 14 21 × 22

(c) 104 × 6 112 × 5 (d) 191 × 3 174 × 5

4 A factory makes 275 packets of biscuits every day. How many packets of biscuits will it
make in 9 days?

5 Ramu is reading a novel. He reads 25 pages daily. If he finishes reading his novel in 8 days,
how many pages are there in the novel?

6 Fill in the blanks.
(a) _____ × _____ = 27 (b) _____ × _____ = 81

(c) _____ × _____ = 72 (d) _____ × _____ = 96

(e) _____ × _____ = 63 (f) _____ × _____ = 49

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