M1 L1
M1 L2
M1 L3
M1 L4
M2 L1
100
Which numbers below are INTEGERS?
-8, 2.5, 0, 1/2, 5
-8, 0, 5
INTEGERS are whole numbers (positive and negative) and zero.
100
Write 4 x 4 x 4 in EXPONENTIAL FORM.
43 OR 4^3
EXPONENTIAL FORM shows the base and the exponent. The ^ symbol is called the caret symbol. The caret symbol indicates that the number after it is an exponent.
100
SIMPLIFY:
2 + 4 x 5
2 + 4 x 5
2 + 20
22
100
What are the first five MULTIPLES of 8?
8, 16, 24, 32, 40
*These are just the first five! Remember, a number has INFINITE multiples!
100
Which is an EQUIVALENT FRACTION of 3/4?
A) 6/9
B) 9/12
C) 5/8
B) 9/12
Because...3/4 x 3/3 = 9/12
200
What is the OPPOSITE of 6?
-6
OPPOSITES have the same ABSOLUTE VALUE but different signs.
200
Write 45 in EXPANDED FORM.
4 x 4 x 4 x 4 x 4
EXPANDED FORM shows the repeated multiplication.
200
SIMPLIFY:
(2 + 3)2 - 5 x 2
(2 + 3)2 - 5 x 2
52 - 5 x 2
25 - 5 x 2
25 - 10
15
200
What are the FACTORS of 24?
1, 2, 3, 4, 6, 8, 12, 24
*Remember, FACTORS divide evenly into the number.
200
Are the fractions EQUIVALENT?
4/5 AND 12/15
YES! Their CROSS PRODUCTS both equal 60!
4 x 15 = 60
5 x 12 = 60
300
What is the ABSOLUTE VALUE of 10?
10
ABSOLUTE VALUE is always positive (or zero)! ABSOLUTE VALUE is the DISTANCE from zero on the number line. Distance is always positive!
300
Which is correct?
A) 34 = 12
B) 34 = 81
C) 34 = 7
34 = 81
NEVER multiply the base by the exponent! Always use the repeated multiplication to evaluate exponential expressions.
34 = 3 x 3 x 3 x 3 = 81
300
SIMPLIFY:
8 / 23 - 9 / 32
8 / 23 - 9 / 32
8 / 8 - 9 / 9
8 / 8 - 9 / 9
1 - 9 / 9
1 - 1
0
300
Which is a COMMON MULTIPLE of 3 and 5?
A) 12
B) 20
C) 30
C) 30 is a COMMON MULTIPLE OF 3 AND 5!
BUT...It's NOT the LEAST COMMON MULTIPLE (LCM)!
LCM = 15
300
Order the fractions from LEAST TO GREATEST:
2/3, 3/7, 1/2
3/7, 1/2, 2/3
400
Compare: 8 ___ -12
8 > -12
POSITIVE numbers are always bigger than NEGATIVE numbers.
400
EVALUATE 5^2.
5^2 = 52 = 5 x 5 = 25
400
EVALUATE:
2x + y, x = 4 and y = 3
2x + y, x = 4 and y = 3
2(4) + 3
8 + 3
11
400
What is the LCM of 5 and 6?
MULTIPLES OF 5: 5, 10, 15, 20, 25, 30, 35, ...
MULTIPLES OF 6: 6, 12, 18, 24, 30, 36, ...
LCM = 30
400
2/3 + 5/8 = ?
31/24
OR
1 and 7/24
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500
Compare: -10 _____ -20
-10 > -20
The more negative a number is, the SMALLER it is!
500
COMPARE: 53 _____ 35
53 = 5 x 5 x 5 = 125
35 = 3 x 3 x 3 x 3 x 3 = 243
53 < 35
500
EVALUATE:
x2 - 3yz, x = 5, y = 2 and z = 3
x2 - 3yz, x = 5, y = 2 and z = 3
52 - 3(2)(3)
25 - 3(2)(3)
25 - 6(3)
25 - 18
7
500
What is the GCF of 40 and 48?
FACTORS OF 40: 1, 2, 4, 5, 8, 10, 20, 40
FACTORS OF 48: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
GCF = 8
500
3/5 x 5/6 = ?
1/2
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