Estimating Square Roots
√55 is between which 2 perfect squares?
7 and 8
Is √ 64 a perfect square? What is the answer?
Yes. 8.
How would you write 4.3756 x 10^4 in standard form?
43 756
35.487 x 10^4
354 870
99 metres to megametres
0.000 099 megameters
√19 is between which two perfect squares?
4 and 5
How do you find perfect squares?
Multiply a number by itself.
Which is correctly written in scientific notation? Why?
a) 45 x 10^7
b) 3.45 x 9^4
c) 8.2 x 10^2
d) 10.1 x 10^6
c) 8.2 x 10^2
235.82 ÷ 10^3
0.23585
2500 micrograms to picograms
2 500 000 000 picograms
√215 is between which 2 perfect squares?
14 and 15
What is 18^2?
324
Which number is the highest value?
a) 2.35 x 10^5
b) 5.01 x 10^4
c) 1.101 x 10^6
d) 9.78 x 10^3
c) 1.101 x 10^6
325 ÷ 10^-3
325 000
1.4 terabytes to kilobytes.
1 400 000 000 kilobytes
√744 is between which 2 perfect squares? What is your estimate? Explain.
27 and 28.
Answers may vary.
≈27.276
Is 2145 a perfect square? What is the answer?
No.
≈ 46.314
Write 0.0000001254 in scientific notation
1.254 x 10^-7
19.92 x 10^-5
0.0001992
4.17 x 10^12 nanolitres to kilolitres.
4.17 kL
√1719 is between which 2 perfect squares? What is your estimate? Explain.
41 and 42
Answers vary
≈ 41.461
Is 13,680 a perfect square? What is the answer?
No.
≈116.962
Write 25 364 000 000 000 in scientific notation.
2.5364 x 10^13
158441 ÷ 10^-5
15 844 100 000
1.993 x 10^4 kilograms to gigagrams
0.019930