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160 Arrow-Puffin-1_Semester-1 MathsWhen the sum of ones exceeds ten, we can regroup the sum into tens and ones. We can use beads, pencils, blocks etc. for regrouping of tens and ones. 7 ones 6 ones 13 ones13 ones can be written as 1 ten + 3 onesTherefore, 7 ones + 6 ones = 13 ones = 1 ten + 3 ones.REGROUPING ONES AND TENSRegroup into ones and tens.1. 3 ones + 9 ones = 12 ones 1 ten and 2 ones2. 7 ones + 8 ones = ones ten and ones3. 5 ones + 5 ones = ones ten and one4. 9 ones + 6 ones = ones ten and ones5. 6 ones + 7 ones = ones ten and ones6. 8 ones + 9 ones = ones ten and onesLet's Understand Conceptual Understanding Let's Practise 7.4 Application