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Adding Four Two-Digit Numbers by Pairwise Grouping

Adding Up to Four Two-Digit Numbers

2nd Grade·Math·Open Global Math

Updated 1 month ago · 4 views

Add four two-digit numbers by grouping them into two strategic pairs and adding the intermediate totals.

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Adding Up to Four Two-Digit Numbers

2nd Grade · Math · Open Global Math

6 lessons

Goal

Add combinations of three and four two-digit numbers using associative grouping, making tens, and columnar algorithms.

6 lessons

0 of 6 done

Adding Three Two-Digit Numbers by Making TensUp next
Adding Three Two-Digit Numbers by Place ValueNot started yet
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Word Problems with Three and Four NumbersNot started yet

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Learning standards covered

OGM.3.NBT.7Open Global Math Standards 2026™ · 2nd Grade

Fluently add and subtract within 100 using mental strategies, decomposition, compensation, making tens, counting on/back, and place-value methods; add up to four two-digit numbers.