1. Estimate each sum to the nearest hundred and also the actual sum:
(1 975 + 7 7 8 =
(ii) 41 70 + 2 397 -
(ill) 7 3 0 0 + 5 31 5 =
(v) 5 6 8 5 + 3 4 7 4 =
(v) 2 397 + 5 6 6 8 =
(vi) 3 7 1 3 + 5 1 3 5 =
mated sum to the nearest thousand and also the actual sum:
Answers
Answer:
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Step-by-step explanation:
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Step-by-step explanation:
(i) 336 and 782
336 to the nearest hundred = 300 and,
782 to the nearest hundred = 800
∴ Required sum = (300+800) = 1100
(ii) 546 and 342
342 to the nearest hundred = 300
∴ Required sum = (500+300) = 800
(iii) 270 and 495
270 to the nearest hundred = 300 and,
495 to the nearest hundred = 500
∴ Required sum = (300+500) = 800
(iv) 4280 and 5295
4280 to the nearest hundred = 4300 and,
5295 to the nearest hundred = 5300
∴ Required sum = (4300+5300) = 9600
(v) 4230 and 2410
4230 to the nearest hundred = 4200 and,
2410 to the nearest hundred = 2400
∴ Required sum = (4200+2400) = 6600
(vi) 30047 and 39287
30047 to the nearest hundred = 30000 and,
39287 to the nearest hundred = 39300
∴ Required sum = (30000+39300) = 69300