Square Roots
Draw the symbol for square root (radical sign)
√
To estimate an imperfect square, what can I use?
Perfect square approximations.
Which is greater?
-2.3 or 11.6
-2.3 < 11.6
Put the numbers in order from least to greatest.
7, 92, -4, -4.3
-4.3, -4, 92, 7
√ 64
8
Is √ 10 closer to 3 or 4?
3.
Which is greater?
√27 or 5
√27 > 5
Put the numbers in order from least to greatest.
5.3, -4.7, 4, √25
-4.7, 4, √25, 5.3
√ 49
7
Estimate √11 to the nearest integer.
≈3.3
Which is greater?
0.3679832... or 0.4
0.3679832... < 0.4
Put the numbers in order from least to greatest.
-6, 4.3¯, -2.8, 123
-6, -2.8, 4.3¯, 123
√ 144
12
Estimate √32 to the nearest tenth.
≈5.6
Which is greater?
√144 or 12
√144 = 12
Put the following numbers in order from least to greatest.
12.5, -16.25, √13 , -15
-16.25, -15 , √13, 12.5
√ 225
15
Bradley wants to paint a square canvas to hang in his living room. If he wants the area of the canvas to be √260 square inches. Approximately how long should each side be? Round your answer to the nearest hundredth.
√260 ≈ 16.1
Which is greater?
√42 or 6.6
√42 < 6.6
Put the following values in order from least to greatest.
8, √63, √100, 7.8, √15
√15, 7.8, √63, 8, √100