Question

4. Simplify the following.
(a) 3125 x 211 + 89 x 5 x 625
(b) 118 x 19 x 1213-2 x 1121 x 1213
(c) 36800 x 212 - 12 x 100 x 368
(d) 442 x 2 x 92 + 8 x 884​

Answer 1

Using the BODMAS Rule :

Step-by-step explanation:

a) 3125 x 211 + 89 x 5 x 625

First Multiple : 659375 + 278125

then Add : 937500

b) 118 x 19 x 1213-2 x 1121 x 1213

First Multiple : 2719546 - 2(1359773)

                     = 2719546 - 2719546

then Subtract: 0

c) 36800 x 212 - 12 x 100 x 368

First Multiple : 7801600 - 12(36800)

                      = 7801600 - 441600

then Subtract : 7360000

d) 442 x 2 x 92 + 8 x 884​

First Multiple : 81328 + 7072

then Add : 88400

Answer 2

I am use the Bodmas Rule

4. Simplify the following.

(a) 3125 x 211 + 89 x 5 x 625

Solution :-

3125 x 211 + 89 x 5 x 625

= 659375 + 278125

= 937500

(b) 118 x 19 x 1213-2 x 1121 x 1213

Solution :-

118 x 19 x 1213-2 x 1121 x 1213

= 2719546 - 2(1359773)

= 2719546 - 2719546

= 0

(c) 36800 x 212 - 12 x 100 x 368

Solution :-

36800 x 212 - 12 x 100 x 368

= 7801600 - 12(36800)

= 7801600 - 44160

= 7360000

(d) 442 x 2 x 92 + 8 x 884

Solution :-

442 x 2 x 92 + 8 x 884

= 81328 + 7072

= 88400

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