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Grade 4 Math · World 7: Decimal Dock · Level 71
Decimals on a Number Line
Place tenths and hundredths on a number line.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 71
- From 0 to 1 cut into 10 equal parts makes a number line in tenths: 0.1, 0.2, 0.3, and so on.
- Zoom in between 0.4 and 0.5, and cut that space into 10 more parts. Each tiny jump is one hundredth.
- So 0.47 is 7 hundredths past 0.4, between 0.4 and 0.5.
Georgia's K-12 Mathematics Standards:
- 4.NR.5.2 — Represent, read, and write fractions with denominators of 10 or 100 using decimal notation, and decimal numbers to the hundredths place as fractions, using concrete materials and drawings.
- 4.NR.5.3 — Compare two decimal numbers to the hundredths place by reasoning about their size. Record the results of comparisons with the symbols >, =, or <, and justify the conclusions.