Question

A , 
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 = ?

B , 
2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = ?

Answer 1

a,=10

b,20

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Answer 2

a. = 10

b. = 20

Answer 3

1+1+1+1+1+1+1+1+1+1=10

2+2+2+2+2+2+2+2+2+2=20

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Answer 4

Cách 1
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 
= 2 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 
= 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 
= 4 + 1 + 1 + 1 + 1 + 1 + 1 
= 5 + 1 + 1 + 1 + 1 + 1 
= 6 + 1 + 1 + 1 + 1 
= 7 + 1 + 1 + 1 
= 8 + 1 + 1 
= 9 + 1 
= 10

Cách 2
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 
= 1 x 10
= 10

Answer 5

a) 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1

= 1 x 10

= 10

b ) 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 

= 2 x 10

= 20

Answer 6

A,10

B,20

Answer 7

A = 10

B = 20

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Answer 8

a, 1+1+1+1+1+1+1+1+1+1= 1x10=10

b, 2+2+2+2+2+2+2+2+2+2= 2x10=20