Asked by Mya

Which numbers make the equation true?

47+___>70

a.10
b.20
c.30

I am extremely confused on how to assist my daughter in solving this, due to this being common core math. Could you please direct me on how to solve problems such as this? than you in advance
Answered by Ms. Sue
If you read the problem correctly, the answer is obvious.

47+___>70

47 plus some number is greater than 70.

Solving it mathematically: Let x = the unknown number

47+_x__>70
x > 23


x
Answered by Steve
well, 70-47 = 23

so, any number bigger than 23 will make the statement true

47+30 = 73 > 70

I have no idea what outlandish method they taught to solve the problem.
Answered by Steve
oops 47+30 = 77 > 70
Answered by Melody
It would be 30 because the unknown number has to add to 47 and be bigger than 70.
Answered by Steve
correct
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