determine the sum by suitable rearrangement. Q1. 157+376+413+524. Q2. 23 + 446 + 377+54. Q3. 4000 + 3768+ 2999 + 1232.
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Answer:
- 157+376+413+524 = 1470
- 23 + 446 + 377+54= 900
- 4000 + 3768+ 2999 + 1232 = 11999
Step-by-step explanation:
157+376+413+524
=( 157+413) +(376+524)
= 570 + 900
= 1470
23 + 446 + 377+54
=(23 + 377) + (446 +54)
= 400 + 500
= 900
4000 + 3768+ 2999 + 1232
= ( 4000 + 2999) + (3768+ 1232)
= 6999 + 5,000
= 11999
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