Best Answer

80 - 10 = 30 + 40

Both sides of the sum now equal 70.

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Q: What makes the number sentence true 80- equals 30 plus 40?

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That word "equals" in there makes it an equation.

80 + 10 equals 90 so the missing value is zero, ie 80 + 10 = 90 - 0

-10

3

The variable is x.

Related questions

That word "equals" in there makes it an equation.

60 - 20 = 20 + 20=============

80 + 10 equals 90 so the missing value is zero, ie 80 + 10 = 90 - 0

-10

3

The variable is x.

5

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12 plus 0 is 12

three plus seven equals ten

10+30=70-30

Unless I'm misunderstanding the question, 1 plus 1 plus 1 equals 3 CAN be written as a multiplication sentence: 1 times 3 equals 3.