Question

4. Find the values of the following by suitable regrouping of numbers. a. 214 x 105 b. 372 × 10 + 28 x 10 C. 57423 x 239 - 57423 x 39 d. 3598 x 64 + 3598 x 36​

Answer 1

Answer:

22470, 4000, 11484600 and 359800 respectively.

Step-by-step explanation:

(a) 214*105 = 22470 [By doing multiplication]

(b) 372*10 + 28*10 = 10*(372+28) = 10*400 = 4000

(c) 57423*239 - 57423*39 = 57423*(239-39) = 57423*200 = 11484600

(d) 3598*64 + 3598*36 = 3598*(64+36) = 3598*100 = 359800