Answer:
Multiply 8 by 200 and add 8 times 7.
Step-by-step explanation2
Multiply 8 by 200 and add 8 times 7.
We can separate 207 into 200 + 7.
To multiply by 8: 8*(200+7)
So the problem is made easier since we can do both calculations in our head and add the result:
8*200 = 1600
8*7 = 56
1600 + 56 = 1656
This approach is both easy and correct.
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The other two options are both more complex AND incorrect:
Multiply 8 by 210 and subtract 8 times 7. The result is 1624. This is incorrect.
Multiply 8 by 200 and subtract 8 times 7. The result is 1544. This is also incorrect.
In both these cases, the math is also harder, since subtracting 56 from the product of either 8*210 or 8*200 is more difficult.
