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Grade 4 Math · World 8: Measure Lab · Level 77
Smaller Units in Bigger Units
300 cm is 3 m, and 5,000 g is 5 kg.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 77
- Going the other way: 300 centimeters is how many meters? Every 100 centimeters make 1 meter, so 300 centimeters is 3 meters.
- 5,000 grams is 5 groups of 1,000 grams: 5 kilograms.
- A pharmacist must get this right! If someone writes that 4,000 grams is 40 kilograms, that's a mistake. 4,000 grams is only 4 kilograms.
Georgia's K-12 Mathematics Standards:
- 4.MDR.6.1 — Use the four operations to solve problems involving elapsed time to the nearest minute, intervals of time, metric measurements of liquid volumes, lengths, distances, and masses of objects, including problems involving fractions with like denominators, and also problems that require expressing measurements given in a larger unit in terms of a smaller unit, and expressing a smaller unit in terms of a larger unit based on the idea of equivalence.