Curriculum placement
Grade 6. This describes the skill, not a learner estimate.
Fluent decimal arithmetic
Compute accurately with multidigit decimal operations
Problem types
- Decimal operations in money and measurement stories
- Total income over a career
- Add and subtract multidigit decimals
- Multiply multidigit decimals
- Divide by a decimal
- Rename a fraction or add decimal weights from a table
Builds on
- The four operations with decimals
- Adding and subtracting within 1,000 · Earlier idea
Adding and subtracting thousands by place value extends to decimal sums, where like places are added and regrouped.
Leads to
- Telling rationals from irrationals
- Income tax, budgets, and net worth · See it applied
Payroll and property tax work multiply and divide decimal amounts.
- Percent increase and decrease · See it applied
Finding a final price after a percent change multiplies decimals.
Related skills
- Adding and subtracting unlike fractions · Related idea
A fraction with a denominator such as 2, 4, 5 or 10 has an exact decimal form, so a sum that mixes both can be done in either form.
- Circumference and area of a circle · Shared foundations
- Profit, cost, and taxes · Shared foundations
- Mean and median · Shared foundations
- Converting within one measurement system · Shared foundations
Open the interactive map to explore lessons and skill connections.