EXERCISE 2(B)
1. Estimate the sum of each pair of numbers to the nearest ten :
0 67 and 44
( 34 and 87 (mm) 23 and 66 (iv) 78 and 18
(v) 96 and 55 (vi) 76 and 62 (vi) 457 and 175 (vii) 474 and 173
(b) 527 and 267
2. Estimate the sum of each pair of numbers to the nearest hundred :
© 336 and 782
546 and 342 (m) 270 and 495 (iv) 4280 and 5295
() 4230 and 2410 (vi) 30047 and 39287
3 Estimate the sum of the following pairs of numbers to the nearest thousand :
0 53826 and 36455
(m) 56802 and 22475
Estimate the following differences correct to the nearest ten :
© 82 - 27
@ 96 - 36
(m) 508 - 248
5. Estimate each difference to the nearest hundred :
( 769 - 314
© 856 - 687 (ii) 6352 - 2086
6. Estimate each difference to the nearest thousand :
( 45974 - 38766
(W) 76003 - 48399
7. Estimate each of the following products by rounding off each number to the nearest ten :
( 49 x 52
@ 63 x 38
(m) 27 x 54
(iv) 53 x 85
(v) 74 x 67
( 25 x 3
8. Estimate each of the following products by rounding off each number to the nearest
hundred :
( 477 x 213
624 x 236 (T) 333 x 247 (iv) 537 x 283
(v) 382 x 127 ( 472 x 828
9. Estimate each of the following products by rounding off the first number correct to the
nearest ten and the other number correct to the nearest hundred :
( 28 x 287
(m) 432 x 128 (m) 48 x 165 (iv) 72 x 258
(V) 83 x 664 (V) 22 x 250
10. Estimate each of the following quotients by converting each number to the nearest ten :
( 87 = 28
@ 84 = 23
(m) 77 = 22 (iv) 198 = 24
(v) 355 = 26
(vi) 444 = 42 (vii) 843 = 33
Answers
Answer:
ans
Step-by-step explanation:
1. Estimate the sum of each pair of numbers to the nearest ten :
0 67 and 44
( 34 and 87 (mm) 23 and 66 (iv) 78 and 18
(v) 96 and 55 (vi) 76 and 62 (vi) 457 and 175 (vii) 474 and 173
(b) 527 and 267
2. Estimate the sum of each pair of numbers to the nearest hundred :
© 336 and 782
546 and 342 (m) 270 and 495 (iv) 4280 and 5295
() 4230 and 2410 (vi) 30047 and 39287
3 Estimate the sum of the following pairs of numbers to the nearest thousand :
0 53826 and 36455
(m) 56802 and 22475
Estimate the following differences correct to the nearest ten :
© 82 - 27
@ 96 - 36
(m) 508 - 248
5. Estimate each difference to the nearest hundred :
( 769 - 314
© 856 - 687 (ii) 6352 - 2086
6. Estimate each difference to the nearest thousand :
( 45974 - 38766
(W) 76003 - 48399
7. Estimate each of the following products by rounding off each number to the nearest ten :
( 49 x 52
@ 63 x 38
(m) 27 x 54
(iv) 53 x 85
(v) 74 x 67
( 25 x 3
8. Estimate each of the following products by rounding off each number to the nearest
hundred :
( 477 x 213
624 x 236 (T) 333 x 247 (iv) 537 x 283
(v) 382 x 127 ( 472 x 828
9. Estimate each of the following products by rounding off the first number correct to the
nearest ten and the other number correct to the nearest hundred :
( 28 x 287
(m) 432 x 128 (m) 48 x 165 (iv) 72 x 258
(V) 83 x 664 (V) 22 x 250
10. Estimate each of the following quotients by converting each number to the nearest ten :
( 87 = 28
@ 84 = 23
(m) 77 = 22 (iv) 198 = 24
(v) 355 = 26
(vi) 444 = 42 (vii) 843 = 33
Answer:
Sorry I don't know the answer of this Question