marcia said that if she estimates 73 x 7 ,the product will be less that the exact answer. is she correct ? explain.
I agree.
70 * 7 = ?
73 * 7 = ?
Can you explain to me how you got this answer. My daughter have this question got home work
To determine whether Marcia is correct or not, we need to compare her estimate of 73 x 7 with the exact answer.
To find the exact answer of 73 x 7, we multiply 73 by 7 using long multiplication:
73
x 7
-----
511
+ 365
-----
511
The exact answer is 511.
Now let's compare it with Marcia's estimate. She claims that her estimate will be less than the exact answer.
Since we estimate by rounding numbers, let's round 73 to the nearest ten, which is 70, and round 7 to the nearest ten, which is 10.
Now we multiply the rounded numbers: 70 x 10 = 700
As we can see, Marcia's estimated product of 73 x 7 (700) is indeed less than the exact answer (511).
Therefore, Marcia is correct in her statement that her estimate is less than the exact answer.