Exponents
Order of Operations
Algebraic Expressions
Area and Square Roots
Big and Small Numbers
100
What is 4^3
4 x 4 x 4 = 64
100
What is 6(9-4) + 20
6x5 = 30 + 20 Is 50
100
What is the area of a triangle, whose formula is A = 1/2 h(b1+b2) if b1=5 b2= 7 h=4
5+7 = 12 x4 = 48 x 1/2 = 24
100
What is the number that does not belong? 25, 81, 16, or 29? Why not?
29, It is not a perfect square. 5x5 9x9 4x4
100
What is 36,000,000 in scientific notation?
3.6 x 10^7
200
What is 2^-3
Remember 2^3 = 8, with negative exponents, just put a 1 on top. It is 1/8
200
What is 3(24/4) - 3x5
3x6 = 18 - 15 Is 3
200
What is the Expression? Your mom does something with your money (m). First, she multiplies it by 5, then divides this product by 2, and then adds 50.
5x / 2 + 50
200
What is the square root of 121?
_____ x_____ = 121 and is the same number.... 11
200
What is Bill Gates makes $240,000 a day. How much does he make in a week?
240,000 x 7 = 24 x 7 followed by 4 0's 1,680,000
300
What is 5^3 x 5^2 x 5^1
Remember, keep the base, add the exponents. 5x5x5x5x5x5 = 5^6
300
What is 5(6-2)
6-2 = 4x5 Is 20
300
What is the Area of a circle with the radius of 3? pi = 3.14 The formula is A = pi x r^2
3.14 x 3 x 3 Is 28.26
300
What is the square root of 225?
_____ x _____ = 225? What number times itself ends in a 5? not 1x1, not 2x2 15
300
What is the solution: Bill Gates is worth $52,000,000,000. He is worth 1,000,000 times more than I am. How much am I worth?
52000000000 cross out 6 0's $52,000
400
What is 6^3 x 6^4 / 6^2
6^7 / 6^2 would be 6666666, cross out 2 6's, and there would be 6x6x6x6x6 or 6^5
400
What is first in this problem: 50 - 20 + 5 x 16
5 x 16
400
What is y if y^2 = 25
y = 5
400
What is the relationship between 6^2 and the square root of 36
6^2 is 36, and the square root of 36 is 6. If it were a square and the area was 36, each side would be 6. If both sides were 6, the area would be 36
400
What is 45,000 x 20
900,000
500
What is 4^2 + 3^3
4^2 =16 3^3 = 27 16+27 = 43
500
What is an expression for this situation? Suppose a gumball machine has a total of x coins. It takes pennies (p) and nickels (n).
p + n = x
500
What is the estimate value of the square root of 34?
5x5 = 25 6x6 is 36 It must be between 5 and 6, and closer to 6. Maybe 5.8
500
What is 12,000/400
30
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