lesson
Decomposing Two-Digit Numbers Into Tens and Ones
Break a two-digit number into its tens and ones parts.

Break a two-digit number into its tens and ones parts.
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4 lessons
Build and decompose two-digit numbers with base-ten blocks and count forward and backward on a hundred chart to strengthen number fluency.
communicate mathematical ideas, reasoning, and their implications using multiple representations, including symbols, diagrams, graphs, and language as appropriate;
analyze mathematical relationships to connect and communicate mathematical ideas; and