Question

Gustav is using front-end estimation. In estimating , Gustav follows the steps below. Where did he go wrong?

Step 1: 72 - 32 = 40
Step 2: 0.93 - 0.07 1
Step 3: 40 - 1 = 39
Step 4: 72.93 - 32.07 39

Answer 1

You want me to explain?

Answer 2

Sure.

Answer 3

Step 1 is fine 72-32= 40

Answer 4

0.93 - .07 = 0.86 not 1.

Answer 5

So step two is off.

Answer 6

The correct operation would be 0.93 + 0.07 = 1

Answer 7

Thank you.

Answer 8

< That baby will get an A+