Question

Please somebody can check out if my answers are correct. Thanks.

Answer 1

i think #20 is a bit off

Answer 2

#21 is off

Answer 3

21 and 22 are not asking for estimates to me.

Answer 4

So the all 3 are incorrect

Answer 5

for the first one 8,75*37.5 is not 342

Answer 6

for #1 is 360

Answer 7

10.25*30.5 =312.63 you have 310 should be acceptable for an estimate

Answer 8

check your calculation again

Answer 9

so the difference is 50

Answer 10

but first is not 360 !
yes answer will be what you get when you subtract