Note — These exercises are intended for use with counters of some kind, – marbles, pebbles, kernels of corn, beans, or paper clips. The objects can be arranged in distinct groups, to represent each number indicated.
STEP 1
- Show the picture and read the associated problems below aloud.
- Direct children to mentally compute and recite the solutions.
STEP 2
- If children have difficulties, practice the subtraction problems with physical objects such as coins, beans, or toys.
- Once children master the problems with physical objects, have children retry the mental computation.
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