Wii Big Brain Academy Hands-On

In one challenge you're given a total and a column of squares with numbers on them. The object was to remove the squares until the remaining numbers equaled the total shown on the screen.

In another challenge, half the screen is filled with an almost Tetris-like image of stacked blocks. The other half of the screen is filled with a bunch of blocks. The object is to remove blocks from the bottom screen to match the top image.