WBBSE Solutions For Class 6 Maths Chapter 3 Logical Approximation Of Number

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Class 6 Math Solutions WBBSE Chapter 3 Logical Approximation Of Number

Example 1. Let us find the nearest whole number which is a multiple of 10, by the following numbers.

  1. 79
  2. 82
  3. 35
  4. 103
  5. 218
  6. 333
  7. 1275
  8. 2364
  9. 3726
  10. 5147

Solution: Nearest whole number = 80

WBBSE Solutions For Class 6 Maths Chapter 3 Logical Approximation Of Number Nearest Whole N umber 80 Multiple By 10

Example 2. Let us find the nearest whole number which is a multiple of 100, for the following numbers

  1. 36
  2. 45
  3. 456
  4. 581
  5. 729

Solution:

Read and Learn More WBBSE Solutions For Class 6 Maths

WBBSE Solutions For Class 6 Maths Chapter 3 Logical Approximation Of Number Nearet Whole Number Multiple Of 100

Example 3. Let us find the nearest whole numbers to the following numbers which will be multiples of 1000.

  1. 98
  2. 21
  3. 776
  4. 332
  5. 2235
  6. 5561
  7. 4325
  8. 7671
  9. 8888
  10. 8968

Solution:

WBBSE Solutions For Class 6 Maths Chapter 3 Logical Approximation Of Number Nearest Whole Number Multiple Of 1000

Class 6 Math Solutions WBBSE

Example 4. Convert the following numbers to their nearest whole numbers which are multiples of 10,100 and 1000 and calculate.

  1. 28 + 71
  2. 316 + 45
  3. 728 – 156
  4. 489 – 36

Solution:

1. 28 + 71

Nearest multiple of 10 = 30 + 70

Nearest multiple of 100 = 0 + 100

Nearest multiple of 1000 = 0 + 0

2. 316 + 45

Nearest multiple of 10 = 320 + 50 = 370

Nearest multiple of 100 = 300 + 0 = 300

Nearest multiple of 1000 = 0 + 0 =0 Ans

3. 728 – 156

Nearest multiple of 10 = 730 – 160 = 570

Nearest multiple of 100 = 700 – 200 = 500

Nearest multiple of 1000 = 1000 – 0 =1000

4. 489 – 36

Nearest multiple of 10 = 490- 40 = 450

Nearest multiple of 100 =500-0 =500

Nearest multiple of 1000 =0 -0 =0

 

Class 6 WBBSE Math Solutions Chapter 3 Logical Approximation Of Number Exercise 3

Question 1. Let us convert the following numbers to their nearest whole number which are multiples of 10:

  1. 12
  2. 347
  3. 1324
  4. 5968

Solution:

Nearest Whole Number (Multiples of 10)

  1. 12: 10
  2. 347: 350
  3. 1324: 1320
  4. 5968: 5970

Question 2. Let us convert the following numbers to the nearest whole number which are multiples of 100:

  1. 621
  2. 483
  3. 6521
  4. 2178

Solution:

Nearest Whole Number (Multiples of 10)

  1. 621: 600
  2. 483: 500
  3. 6521: 6500
  4. 2178: 2200

Question 3. Let us convert the following numbers to their nearest whole numbers which are multiples of 1000:

  1. 346
  2. 827
  3. 6719
  4. 8394

Solution:

Nearest Whole Number (Multiples of 10)

  1. 346: 0
  2. 827: 1000
  3. 6719: 7000
  4. 8394: 8000

Class 6 WBBSE Math Solutions

Question 4. Let us change the following numbers to their nearest whole numbers which are multiples of 10 and calculate.

1. 37 + 54
Solution: For the nearest multiple of 10, 40 + 50 = 90

2. 73 – 78
Solution: For the nearest multiple of 10, 70 – 50 = 20

3. 24 + 59
Solution: For the nearest multiple of 10, 20 + 60 = 80

4. 97 – 38
Solution: For the nearest multiple of 10,100 – 40 = 60

5. 76 – 29
Solution: For the nearest multiple of 10, 80 – 30 = 50

6. 66 + 73
Solution: For the nearest multiple of 10, 70 + 70 = 140

7. 251 + 175
Solution: For the nearest multiple of 10, 250 + 180 = 430

8. 462 – 271
Solution: For the nearest multiple of 10, 460 – 270 = 190

Question 5. Let us change the following numbers to their nearest whole numbers which are multiples of 100 and calculate:

1. 426+ 589
Solution: For the nearest multiple of 100, 400 + 600 = 1000

2. 356+ 435
Solution: For the nearest multiple of 100, 400 + 400 = 800

3. 678 -125
Solution: For the nearest multiple of 100, 700 -100 = 600

4. 1248 + 4329
Solution: For the nearest multiple of 100,1200 + 4300 = 5500

5. 170 + 895
Solution: For the nearest multiple of 100,200 + 900 = 1100

Class 6 WBBSE Math Solutions

6. 947 + 448
Solution: For the nearest multiple of 100, 900 + 400 = 1300

7. 5612 + 2095
Solution: For the nearest multiple of 100, 5600 + 2100 = 7700

8. 4258 – 2436
Solution: For the nearest multiple of 100, 4300 – 2400 = 1900

Question 6. Let us change the following numbers 1o their nearest whole nunv bers which are multiples of 1000 and calculate.

1. 2836 + 7466
Solution: For the nearest multiple of thousand, 3000 + 7000 = 10,000

2. 3076 + 5731
Solution: For the nearest multiple of thousand, 3000 + 6000 = 9000

3. 7767 + 3685
Solution: For the nearest multiple of thousand, 8000 + 4000 = 12000

4. 8005 + 7483
Solution: For the nearest multiple of thousand, 8000 + 7000 = 15000

5. 1375 + 6307
Solution: For the nearest multiple of thousand, 1000 + 6000 = 7000

Class 6 WBBSE Math Solutions

6. 8643 + 5285
Solution: For the nearest multiple of thousand, 9000 + 5000 = 14000

Question 7. Match left side with right side:

WBBSE Solutions For Class 6 Maths Chapter 3 Logical Approximation Of Number Match The Left Side With Right Side

Solution: 1. C, 2. A, 3. B, 4. F, 5. D, 6. E

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