Page 62 - ICSE Math 4
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4.  Find the following products.
                           (a)  925 × 10           (b)  308 × 100         (c)  79 × 1,000        (d)  286 × 100

                     5.  Mul  ply and fi nd the products using both la   ce method and column method.

                           (a)  69 × 16            (b)  29 × 27           (c)  46 × 32           (d)  293 × 173
                      6.  Solve the given word problems.

                           (a)  A baker bakes 395 cookies in a day. How many cookies will he bake in 18 days?

                           (b)  A game show has 21 categories. There are 72 points in each category. How many
                                points are there in the game show?
                            (c)  Shreya bought 37 packets of marbles, each of which contained 44 marbles.
                                How many marbles are there in all?

                           (d)  A family went for vaca  on to Europe. They stayed in a hotel which had 15
                                fl oors. If there were 125 people on each fl oor, how many people were there in
                                the hotel?

                      7.  Frame two word problems for each of the following and solve them.

                           (a)  276 × 34                    (b)  128 × 230                  (c)  442 × 31
                     8.  Mul  ply using the expanded form and verify the result by standard mul  plica  on.

                           (a)  437 × 5            (b)  295 × 3           (c)  708 × 4           (d)  518 × 8

                      9.  Choose the best es  mate and   ck () the correct answer.
                           (a)  Poonam bought 54 jigsaw puzzles. Each puzzle had 58 pieces. About how many
                                puzzle pieces did Poonam get in all?

                                 (i)  3,000 puzzle pieces                     (ii)  30,000 puzzle pieces

                           (b)  A jewellery company ordered 82 boxes of silver beads. There were 770 beads
                                in each box. About how many silver beads did the jewellery company order?
                                 (i)  64,000 silver beads                     (ii)  6,300 silver beads

                            (c)  Rajesh bought 48 packets of T-shirts for his shop. Each packet contained
                                3 T-shirts. About how many T-shirts did Rajesh buy in all?

                                (Hint: Do not round off  the single digit number.)
                                 (i) 150 T-shirts                             (ii) 1,500 T-shirts

                           (d)  A grain company fi lled 28 bags with grains. They put 75 kilograms of grains in
                                each bag. About how many kilograms of grains are there in all the bags?

                                 (i)  2,100 kilograms of grains               (ii)  2,400 kilograms of grains
                           (e)  On a par  cular day 639 customers visited a grocery shop. The grocery shop
                                gave 8 coupons to each of them. About how many coupons did the grocery

                                shop give in all?
                                 (i) 5,100 coupons                            (ii) 4,800 coupons

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