Page 77 - Start Up Mathematics_4

(b) A jewellery company ordered 82 boxes of silver beads. There were 77 beads in
each box. About how many silver beads did the jewellery company order?

64,000 6,300

(c) Rajesh bought 48 packets of T-shirts. Each packet contained 3 T-shirts. About how
many T-shirts did Rajesh buy in all?
(Hint: Do not round off single digit numbers.)

150 1,500

(d) A grain company filled 28 bags with grains. They put 754 grams of grains in each
bag. About how many grams of grain are there in all the bags?

21,000 24,000

(e) A grocery shop distributed 8 coupons to each house in their locality. There are 639
houses in the locality. About how many coupons did the grocery shop distribute
in all?

5,100 5,200

(f) There are 666 polka dots on each dress. There are 98 such dresses. About how
many polka dots in all are there on all the dresses?

70,000 65,000

3. A travel agency sold 18 holiday packages for Malaysia and 16 holiday packages for
Australia. If one holiday package for Malaysia costs ` 27,985 and for Australia ` 49,869,
how much did the agency earn from the two holiday packages?

4. Frame a word problem for each of the following and solve them.
(a) 9,361 × 28 = ? (b) 4,038 × 75 = ?

5. Simplify.
(a) 15 × 7 – 4 × 8 + 14 × 5 (b) 13 × 60 – 8 × 16 – 28 × 50 + 25 × 83

6. Multiply using both lattice and column methods.
(a) 136 × 45 (b) 92 × 65 (c) 184 × 28

SOME NCERT TEXTBOOK QUESTIONS

1. A family of 8 people needs 60 kg wheat for a month. How much wheat does this
family need for a week?

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