1
Multiply decimals by whole numbers
Calculate products of decimals and whole numbers using place value.
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2
Estimate decimal products
Estimate products before exact calculation.
3
Solve decimal scaling problems
Use decimal multiplication in price, length, mass or capacity contexts.
4
Multiply decimals by decimals
Multiply decimal numbers and place the decimal point correctly.
5
Interpret decimal products less than factors
Explain why multiplying by a number less than $1$ can reduce a value.
6
Detect decimal-point placement errors
Identify and fix common decimal multiplication errors.
7
Divide decimals by whole numbers
Divide decimal quantities equally by whole numbers.
8
Use zeros in decimal division
Add zero placeholders to complete division accurately.
9
Solve sharing problems with decimals
Apply decimal division to equal sharing and rate situations.
10
Divide decimals by powers of $10$
Shift decimal place correctly when dividing by $10$, $100$ or $1000$.
11
Solve unit-rate problems with decimals
Find cost per unit, speed, or measurement rates involving decimals.
12
Judge reasonableness in decimal calculations
Use estimation to catch misplaced decimal answers.
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