Find the product. Estimate to check that your answer if reasonable.
191 x 88
198 * 88 = 17,424
200 * 90 = 18,000
To find the product of 191 and 88, we can use the multiplication algorithm.
First, we multiply the ones digit of 191 (which is 1) by 88:
1 x 88 = 88
Next, we multiply the tens digit of 191 (which is 9) by 88:
9 x 88 = 792
Finally, we multiply the hundreds digit of 191 (which is 1) by 88:
1 x 88 = 88 (place the result two places to the left)
Now, we add up the results:
88
+792
+8800 (placed two places to the left)
------
16768
Therefore, 191 x 88 = 16768.
To estimate and check if our answer is reasonable, we can round the numbers to the nearest ten.
Rounding 191 down to the nearest ten gives us 190, and rounding 88 up to the nearest ten gives us 90.
The rounded numbers 190 and 90 are close to 191 and 88, respectively, and their product is 190 x 90 = 17100.
Since 16768 is less than 17100, our answer of 16768 is reasonable as it falls below the estimated product.