Mental Arithmetic
Level
1
2
3
10/10
About
how much is this?
$89 + $29 + $301 + $199
≈
$
630
\approx \$630
≈
$630
≈
$
640
\approx \$640
≈
$640
≈
$
610
\approx \$610
≈
$610
≈
$
620
\approx \$620
≈
$620
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