Let’s solve each square root step by step.
We are looking for the number that, when multiplied by itself, gives the number under the square root symbol.
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√121 → What times what equals 121?
11 × 11 = 121 → So √121 =
11
√289 → What times what equals 289?
17 × 17 = 289 → So √289 =
17
√400 → What times what equals 400?
20 × 20 = 400 → So √400 =
20
√361 → What times what equals 361?
19 × 19 = 361 → So √361 =
19
√225 → What times what equals 225?
15 × 15 = 225 → So √225 =
15
√81 → What times what equals 81?
9 × 9 = 81 → So √81 =
9
√100 → What times what equals 100?
10 × 10 = 100 → So √100 =
10
√169 → What times what equals 169?
13 × 13 = 169 → So √169 =
13
√4 → What times what equals 4?
2 × 2 = 4 → So √4 =
2
√324 → What times what equals 324?
18 × 18 = 324 → So √324 =
18
√196 → What times what equals 196?
14 × 14 = 196 → So √196 =
14
√256 → What times what equals 256?
16 × 16 = 256 → So √256 =
16
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Final Answer:
√121 = 11
√289 = 17
√400 = 20
√361 = 19
√225 = 15
√81 = 9
√100 = 10
√169 = 13
√4 = 2
√324 = 18
√196 = 14
√256 = 16
Parent Tip: Review the logic above to help your child master the concept of square root practice worksheet.
