Contents
Natural Numbers and Whole Numbers – Maharashtra Board Class 6 Solutions for Mathematics (English Medium)
MathematicsGeneral ScienceMaharashtra Board Solutions
Exercise-19
Solution 1(1):
Solution 1(2):
Solution 1(3):
Solution 1(4):
Solution 2(1):
Solution 2(2):
Solution 2(3):
Solution 2(4):
Solution 2(5):
Solution 2(6):
Exercise-20
Solution 1:
- 9 (3 + 14)
= 9 × 3 + 9 × 14 - 25 (23 + 16)
= 25 × 23 + 25 ×16 - 20(58 + 109)
= 20 × 58 + 20 × 109
Solution 2:
- 15 × 3 + 15 × 7
= 15 (3 + 7) - 9 × 38 + 9 × 12
= 9 (38 + 12) - 125 × 69 + 125 × 31
= 125 (69 + 31)
Solution 3:
- 9 × 38 + 9 × 12
= 9 (38 + 12)
= 9 × 50
= 450 - 125 × 69 + 125 × 31
= 125 (69 + 31)
= 125 × 100
= 12,500 - 594 × 210 + 594 × 290
= 594 (210 + 290 )
= 594 × 500
= 2,97,000 - 16 × 81 + 34 × 81
= 81 (16 +34)
= 81 × 50
= 4,050
Solution 4:
- 51 × 51
= 51 (50 + 1)
= 51 × 50 + 51 × 1
= 2550 + 51
= 2,601 - 75 × 75
= 75 (70 + 5)
= 75 × 70 + 75 × 5
= 5250 + 375
= 5,625 - 102 × 102
= 102 (100 + 2)
= 102 × 100 + 102 × 2
= 10200 + 204
= 10,404