Question

Please help, it’s the last question on my worksheet and I’ve done all the rest of problems. I’m stuck on this one.

Line up decimals.
0 0.217 + ? = 456.3

Answer 1

Explanation:

you must do inverse operation like:

0 0.217+? = 456.3

=456.3-0.217

= 456.083

The answer you get is the answer to ?

you can check it, you just add the answer to the question mark

Answer 2

456.083

Explanation:

Use basic algebra to solve this problem:

0.217 + x = 456.3 (x just means an unknown value)

Subtract 0.217 from both sides. When you do this, it cancels out on the left side. REMEMBER: whatever you do to one side, you MUST do it to the other.

0.217 - 0.217 + x = 456.3 - 0.217

x = 456.083

0.217 + 456.083 = 456.3

Hope that helps