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Grade 4 Math · World 7: Decimal Dock · Level 68
Add Tenths and Hundredths
Solve 3/10 + 4/100 = 34/100.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 68
- Add 3 tenths and 4 hundredths. The parts are different sizes, so we can't just add 3 and 4.
- Change the tenths to hundredths: 3 tenths is 30 hundredths, the orange columns.
- Now both are hundredths: 30 hundredths plus 4 hundredths is 34 hundredths.
Georgia's K-12 Mathematics Standards:
- 4.NR.5.1 — Demonstrate and explain the concept of equivalent fractions with denominators of 10 and 100, using concrete materials and visual models. Add two fractions with denominators of 10 and 100.