Question

Subtract 238 − 128.(1 point) Responses 18 Start Fraction 1 over 8 End Fraction 358 3 Start Fraction 5 over 8 End Fraction 118 1 Start Fraction 1 over 8 End Fraction 1664 1 Start Fraction 6 over 64 End Fraction

Answer 1

To subtract 238 from 128, we align the numbers by place value and subtract each column to find that 238 minus 128 equals 110. Additionally, division and multiplication are related through reciprocals; for instance, dividing by 8 is the same as multiplying by the reciprocal (⅛).

Step-by-step explanation:

To subtract the numbers 238 and 128, one must line up the digits according to their place value and subtract each corresponding place from the top number (238) from the bottom number (128). Starting from the unit place:

1. 8 (from 238) minus 8 (from 128) equals 0.
2. 3 (from 238) minus 2 (from 128) equals 1.
3. 2 (from 238) minus 1 (from 128) equals 1.

So, 238 minus 128 equals 110.

Another approach to reinforcement of mathematics concepts is understanding the relationship between multiplication and division. For example, dividing by 8 is the same as multiplying by its reciprocal, which is ⅛ (¼ or 0.125). Therefore, to find what one-eighth of a number is, such as 1000, you would multiply 1000 by 0.125, giving you 125.