Fun with Give and Take
NCERT Math-Magic for Class 3, Chapter 6 has fun with give and take using quick mental maths. Children add and subtract in their heads by breaking numbers into tens and ones, rounding to nearby tens, and adjusting after easy sums. They estimate market bills, work out change, and solve two-step stories about earning and spending. Short cuts like adding nine by adding ten and taking one back make calculation fast. It builds flexible number sense and confidence in estimating before reaching for written work.
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