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In RS1 Level B, the child learns the addition facts to 18 with mental strategies. They also learn to add 4-digit numbers and 2-digit numbers mentally. Subtraction is delayed until addition is thoroughly understood. Place value is emphasized throughout. Other topics taught include geometry, measurement, money, clocks, and basic fractions.
WARNING: CHOKING HAZARD! Small parts. Not for children under 3 years.
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