Let’s solve each square root one by one. We’re looking for a number that, when multiplied by itself, gives the number under the square root.
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1.
√121
What number times itself equals 121?
11 × 11 = 121 → So, √121 =
11
2.
√289
Try 17: 17 × 17 = 289 → So, √289 =
17
3.
√400
20 × 20 = 400 → So, √400 =
20
4.
√361
Try 19: 19 × 19 = 361 → So, √361 =
19
5.
√225
15 × 15 = 225 → So, √225 =
15
6.
√81
9 × 9 = 81 → So, √81 =
9
7.
√100
10 × 10 = 100 → So, √100 =
10
8.
√169
13 × 13 = 169 → So, √169 =
13
9.
√144
12 × 12 = 144 → So, √144 =
12
10.
√324
Try 18: 18 × 18 = 324 → So, √324 =
18
11.
√196
14 × 14 = 196 → So, √196 =
14
12.
√256
16 × 16 = 256 → So, √256 =
16
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All answers are whole numbers — these are perfect squares!
Final Answer:
√121 = 11
√289 = 17
√400 = 20
√361 = 19
√225 = 15
√81 = 9
√100 = 10
√169 = 13
√144 = 12
√324 = 18
√196 = 14
√256 = 16
Parent Tip: Review the logic above to help your child master the concept of square root worksheet.
