Mental Arithmetic
Level
1
2
3
6/10
About
how much to pay?
≈
$
30
\approx \$30
≈
$30
≈
$
33
\approx \$33
≈
$33
≈
$
27
\approx \$27
≈
$27
≈
$
36
\approx \$36
≈
$36
Prev.
Check answer
Skip
Help?
