Practice the questions given in the worksheet on estimation. The questions are based on estimating the sum, difference, product and quotient to the nearest tens, hundreds and thousands.
1. Estimate and solve to the nearest tens:
(i) 24 + 58
(ii) 88 – 29
(iii) 95 ÷ 9
(iv) 114 ÷ 14
(v) 4252 ÷ 247
2. Estimate and solve
to the nearest hundreds:
(i) 319 + 178
(ii) 587 – 222
(iii) 623 ÷ 199
(iv) 156 × 450
(v) 146 × 51
3. Estimate and solve to the nearest thousands:
(i) 5786 + 2126
(ii) 7123 – 3678
(iii) 9116 ÷ 2716
(iv) 15214 ÷ 3317
(v) 240265 ÷ 2436
4. Estimate the product to the nearest hundreds:
(i) 11 × 39
(ii) 77 × 24
(iii) 310 × 299
(iv) 516 × 372
(v) 476 × 246
5. Estimate the sum to the nearest hundreds. Verify by actual addition.
(i) 166 + 427
(ii) 6043 + 2476
(iii) 4569 + 3274
(iv) 8042 + 1375
(v) 9563 + 2416
6. Estimate the sum to the nearest tens. Verify by actual addition.
(i) 44 + 27
(ii) 219 + 437
(iii) 572 + 383
(iv) 1076 + 2541
(v) 5431 + 1023
Answers for the worksheet on estimation are given below to check the exact answers of the above questions.
Answers:
1. (i) 80
(ii) 60
(iii) 10
(iv) 11
(v) 17
2. (i) 500
(ii) 400
(iii) 3
(iv) 100000
(v) 7500
3. (i) 8000
(ii) 3000
(iii) 3
(iv) 5
(v) 99
4. (i) 400
(ii) 1600
(iii) 90000
(iv) 200000
(v) 100000
5.(i) 600
(ii) 8500
(iii) 8000
(iv) 9000
(v) 12000
6. (i) 70
(ii) 660
(iii) 950
(iv) 3620
(v) 6450
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