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Grade 4 Math · World 5: Pattern and Factor Garden · Level 48
Every Factor Pair
Find all the factor pairs of a number to 100.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 48
- To find every factor pair of 36, try 1, 2, 3, and so on, in order. 1 times 36, 2 times 18, 3 times 12, 4 times 9.
- 5 doesn't work: 36 can't be split into equal groups of 5. 6 works: 6 times 6.
- The next one, 9 times 4, is 4 times 9 again. When the pairs start to repeat, you've found them all! 36 has 5 factor pairs.
Georgia's K-12 Mathematics Standards:
- 4.PAR.3.3 — Find factor pairs in the range 1–100 and find multiples of single-digit numbers up to 100.