Tell how many times-9 - 9 - 9 - 9 - 9 - 9- 6 times- 9- 54-4 - 4 - 4 - 4 - 4- 5 times- 4- 20-8 - 8 - 8- times- 8- -3 - 3 - 3 - 3 - 3- 5 times- - -30 - 30 - 30- - times- - -7 - 7 - 7 - 7 - 7 - 7- - times- - -12 - 12 - 12 - 12- - times- 12- -6 - 6 - 6- - times- - -10 - 10 - 10 - 10- - times- - -2 - 2 - 2 - 2 - 2- - times- - -6 - 6 - 6 - 6 - 6 - 6 - 6- - times- - -

nbsp; 9 + 9 + 9 + 9 + 9 + 9 = 6 times; 9 = 54 4 + 4 + 4 + 4 + 4 = 5 times; 4 = 20 8 + 8 + 8 = 3 times; 8 = 24 3 + ...

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Byju's Answer

Standard VI

Mathematics

Associativity of Whole Numbers

Tell how many...

Question

Tell how many times!

9 + 9 + 9 + 9 + 9 + 9 = 6 × 9 = 54

4 + 4 + 4 + 4 + 4 = 5 × 4 = 20

8 + 8 + 8 = × 8 =

3 + 3 + 3 + 3 + 3 = 5 × =

30 + 30 + 30 = × =

7 + 7 + 7 + 7 + 7 + 7 = × =

12 + 12 + 12 + 12 = × 12 =

6 + 6 + 6 = × =

10 + 10 + 10 + 10 = × =

2 + 2 + 2 + 2 + 2 = × =

6 + 6 + 6 + 6 + 6 + 6 + 6 = × =

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Solution

9 + 9 + 9 + 9 + 9 + 9 = 6 × 9 = 54

4 + 4 + 4 + 4 + 4 = 5 × 4 = 20

8 + 8 + 8 = 3 × 8 = 24

3 + 3 + 3 + 3 + 3 = 5 × 3 = 15

30 + 30 + 30 = 3 × 30 = 90

7 + 7 + 7 + 7 + 7 + 7 = 6 × 7 = 42

12 + 12 + 12 + 12 = 4 × 12 = 48

6 + 6 + 6 = 3 × 6 = 18

10 + 10 + 10 + 10 = 4 × 10 = 40

2 + 2 + 2 + 2 + 2 = 5 × 2 = 10

6 + 6 + 6 + 6 + 6 + 6 + 6 = 7 × 6 = 42

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Similar questions

Verify the following :

(i) $\frac{3}{7} \times (\frac{5}{6} + \frac{12}{13}) = (\frac{3}{7} \times \frac{5}{6}) + (\frac{3}{7} \times \frac{12}{13})$
(ii) $\frac{- 15}{4} \times (\frac{3}{7} + \frac{- 12}{5}) = (\frac{- 15}{4} \times \frac{3}{7}) + (\frac{- 15}{4} \times \frac{- 12}{5})$
(iii) $(\frac{- 8}{3} + \frac{- 13}{12}) \times \frac{5}{6} = (\frac{- 8}{3} \times \frac{5}{6}) + (\frac{- 13}{12} \times \frac{5}{6})$
(iv) $\frac{- 16}{7} \times (\frac{- 8}{9} + \frac{- 7}{6}) = (\frac{- 16}{7} \times \frac{- 8}{9}) + (\frac{- 16}{7} \times \frac{- 7}{6})$

Q. In a shop, different sizes of shoes sold in a week are 7, 9, 8, 6, 7, 10, 6, 7, 8, 9, 11, 5, 6, 7, 8, 5, 9, 10, 9, 11, 12, 8, 3, 3, 5, 4, 6, 7, 4, 6, 7, 8, 8, 6, 9. What is the difference of the number between shoes sold of size 6 and size 7?

Q. Find the value of:

(1) 3⁶
(2) 6³
(3) 2⁶
(4) 1⁸
(5) 5⁴
(6) 4³
(7) 10⁵
(8) 10⁷
(9) 7⁴
(10) 8²

Q. Evaluate.
(i) 9 × (− 3) × (− 6)
(ii) (− 5) × (− 10) × (− 7) × 2
(iii) (− 18) × (− 43) × 0
(iv) (− 9) × (− 8) × (− 1) × 1
(v) − 12 × (− 15) × 6 × 4
(vi) − 7 × (− 4) × (− 6) × (− 2)

Q. Which of the following will come next in the following series?

919829873987649876559876546987654

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9 + 9 + 9 + 9 + 9 + 9	= 6 × 9	= 54
4 + 4 + 4 + 4 + 4	= 5 × 4	= 20
8 + 8 + 8	=____ × 8	= ____
3 + 3 + 3 + 3 + 3	= 5 × ____	= ____
30 + 30 + 30	= ____ × ____	= ____
7 + 7 + 7 + 7 + 7 + 7	= ____ × ____	= ____
12 + 12 + 12 + 12	= ____ × 12	= ____
6 + 6 + 6	= ____ × ____	= ____
10 + 10 + 10 + 10	= ____ × ____	= ____
2 + 2 + 2 + 2 + 2	= ____ × ____	= ____
6 + 6 + 6 + 6 + 6 + 6 + 6	= ____ × ____	= ____