Common Core State Standard
1.OA.C.5
Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).
CCSS: 1.OA.C.5, 2.OA.B.2
Click on the blocks that equal the number that Brainie is thinking of. First few levels aren't too bad. After that you'd better be quick!
CCSS: 1.OA.C.5
Click on the blocks to add their values to the target sum. Go fast to get a high score and keep the blocks from reaching the top.
CCSS: 1.OA.C.5, 2.OA.B.2
Click the numbered orbs to create a total of 10 before any of the orbs reach the top. Use your bombs and clocks wisely to get a high score..
CCSS: 1.OA.C.5
This game is a combination of Number Crunch and Guitar Hero. Get the numbers to add up to 10. Choose them by hitting the right key when they reach the "strum bar".
CCSS: 1.OA.C.5, 2.OA.B.2
Play Tetris with numbers. Clear numbers from the board by dropping numbers so they add up to the target number. Lots of levels to choose from.