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1 vote
70×40 I need to no 70×40 can you please help me??​

User Jenie
by
7.9k points

2 Answers

4 votes

Answer:

2800

Explanation:

hear is a tip do the butterfly method

6 votes

Answer:

2800

Explanation:

since 7 x 4 is 28 , 70 x 40 is 2800 because 70 is 7 x 10 and 40 is 4 x 10,

so 7 x 10 x 4 x 10 can be moved to get 7 x 4 x 10 x 10. if we do this we get 28 x 100 therefore 2800

User AndreySarafanov
by
8.3k points