Which is an example of the compensation strategy 27 4 is ab

Which is an example of the compensation strategy?

Solution

The following is the example of compensation strategy:

27 × 4 = 20 × 4 + 7 × 4 = 80 + 28 = 108 Changing 27 = 20+ 7 and multiplying each of the component separately by 4 and then adding the results together makes it easier to get the result than the direct multiplication. Therefore, it is an example of compensation strategy.

27 × 4 is about 30 (27 + 3) × 4 = 120; then subtract out the extra 3 × 4, so 120 –12 = 108 also would have been an example of compensation strategy but for the use of the word \" about \".

The other two examples do not make it any easier to get the result, and hence these are not examples of compensation strategy.