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About this game
Volume of a box: a free Grade 5 math game for ages 10-11. Kids multiply length, width and height to find the volume of a box in cubic centimeters. Each round brings 10 fresh questions with new numbers; instructions are read aloud and every answer is checked.
A shoebox packed with sugar cubes is a good way to picture this one. Volume of a box gives the length, width and height of a box in centimeters, each from 2 to 9, and asks for its volume in cubic centimeters. New numbers come on every card, ten per round. Your child types the answer in this Grade 5 game, each answer is checked, and the hint gives the formula.
Volume counts the unit cubes that fill a box. The bottom layer is length times width, and the height says how many layers stack up, which is why the formula in the hint, length × width × height, works. A box 4 cm by 5 cm by 9 cm holds 20 cubes per layer and 9 layers, 180 cubic centimeters.
Stopping at the floor is common. Multiply only 4 × 5 and the answer, 20, covers the bottom layer alone. Ask, "How many layers like that fit up to the top?" Stacking real blocks makes the layers visible. End with, "You counted every layer, not just the bottom."