Evaluating Expressions & Equations with Exponents (Grade 8)
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Evaluating Expressions & Equations with Exponents
1.
Evaluate. [math]6^2xx6^-4[/math]
- 0.022
- 0.028
- 0.020
- 0.029
2.
Evaluate. [math]4^-3xx4^2[/math]
- 0.25
- 0.025
- 0.156
- 0.125
3.
Evaluate. [math]3^2xx3^4[/math]
- 729
- 279
- 972
- 792
4.
[math]5^-2 xx 5^5[/math] is equivalent to which of the following?
- [math]78,125[/math]
- [math].008[/math]
- [math]125[/math]
- [math]51,278[/math]
5.
[math]2^-2 / 2^-5[/math] is equivalent to which of the following?
- [math]2[/math]
- [math]1/2[/math]
- [math]8[/math]
- [math]1/8[/math]
6.
Evaluate. [math]2^5xx2^3[/math]
- 265
- 0.25
- 256
- 652
7.
Evaluate. [math]5^3xx5^-6[/math]
- 0.08
- 0.008
- 0.04
- 125
8.
Evaluate. [math]6^2xx6^4[/math]
- 45,656
- 46,666
- 46,656
- 65,456
9.
Evaluate. [math]4^3xx4^2[/math]
- 2,410
- 1,240
- 1,024
- 1,224
10.
Evaluate. [math]2^5xx2^-3[/math]
- 4
- 8
- -4
- -8
11.
Evaluate. [math]5^3xx5^6[/math]
- 1,953,215
- 1,915,352
- 1,935,125
- 1,953,125
12.
Evaluate. [math]3^-2xx3^4[/math]
- 9
- 0.111
- -9
- -0.111
13.
[math]4^3/12^-2[/math]
- [math]-4/9[/math]
- 2304
- 9216
- [math]9/4[/math]
14.
[math]4^3-3^2[/math]
- [math]1/55[/math]
- 55
- 576
- 73
15.
[math]6^3/3^-2[/math]
- 24
- 1944
- [math]1/24[/math]
- 225
16.
[math]3^5/2^3-2^2[/math]
- [math]234/4[/math]
- [math]211/8[/math]
- [math]243/4[/math]
- 1940
17.
[math]6^4/3^2[/math]
- [math](1/144)^-1[/math]
- 144
- 1/144
- Both A and B
18.
[math]-5^3+2^3[/math]
- -133
- [math]-999/8[/math]
- 133
- -117
19.
[math]4^2/2^5[/math]
- [math]-1/512[/math]
- 400
- 0.5
- None of the above
20.
[math]6^3xx3^-2[/math]
- 24
- 1944
- [math]1/24[/math]
- 225
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