JPEN

Addition Challenge

Addition 20

20 problems in a row. Go for it!

Progress
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Time00:00
Mistakes0
Problem 47 + 5 =
Problem 54 + 9 =
Problem 66 + 8 =
Problem 79 + 3 =
Problem 85 + 7 =
Problem 106 + 4 =
Problem 119 + 9 =
Problem 122 + 7 =

Solve a series of addition problems. Each mistake adds 3 seconds to your time.

Choose how many problems you want to challenge, then click Start. The game begins after the countdown!Choose how many problems you want to challenge, then tap Start. The game begins after the countdown!

Sound Effects

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