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Decimals Reasoning Strategies

This section describes the specific reasoning strategies and understandings that relate to decimals. Reasoning strategies are organized into two categories—those appropriate and those not appropriate to the numbers at hand in the problem.

Click the symbol next to any strategy or understanding to learn more and view video examples.

Computing Mentally

Strategies appropriate for the numbers at hand Strategies not appropriate for the numbers at hand

Breaks numbers apart to compute

Uses benchmark numbers to compute

Applies place value to adjust decimal point

Uses benchmark numbers to make estimates

Uses standard algorithm to compute

Figures exact answer to estimate

Applying Understanding

Strategies appropriate for the numbers at hand

Models with mathematics to solve problems in context

Uses place value to compare

Relates decimals to fractions