Question

1. Find the sum by suitable rearrangement:
(a) 837 + 208 + 363
(b) 1962 + 453 + 1538 + 647​

Answer 1

Step-by-step explanation:

$\huge \boxed{ \fcolorbox{green}{purple}{good morning}}$

here's your answer.

1. (837+363)+208

=> (1200)+208

=> (1408)

2. (1962+1538)+(453+647)

=> (3500)+(1100)

=> (4600)

additional information

=> we have to group numbers which have complimentary ends...

=> in the first question we grouped numbers ending with 7 and 3 to ease our calculation...

=> we can group numbers ending with digits that sum up to 10 so that we ease the burden of calculation..

that's ur answer

$\huge \boxed{ \fcolorbox {green}{grey}{thank you}}$

Answer 2

Answer:

a)1408

b)4,600

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