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Grade 5 Math · World 4: Thousandths Dock · Level 40
Subtract Decimals
Subtract to the hundredths, and add to check.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 40
- Subtracting works the same way. Line up the points, and fill empty places with zeros. Let's solve 5 minus 2.75.
- Write 5 as 5.00. Now there are places to regroup from.
- Regroup a one into 9 tenths and 10 hundredths. Subtract each place, and you get 2.25.
- Check by adding: 2.25 plus 2.75 is 5.00. It works!
Georgia's K-12 Mathematics Standards:
- 5.NR.4.4 — Solve problems involving addition and subtraction of decimal numbers to the hundredths place using a variety of strategies.