Vocabulary
Number lines
Fractions
Decimals
Order of operations
100
The bottom number in a fraction; it must be an integer and cannot be zero because division by zero is undefined.
Denominator
100
What number is opposite -7 on the number line?
+ 7
100
5/6 - 1/3
1/2
100
What is the sum of 14.5 and 3.82?
Aligning the decimal points gives 14.50 + 3.82 = 18.32.
100
Which operation would you do first?
10 - 7 + 8 ÷ 1
Division
200
__________ is the distance a number is from zero on a number line. The value is always positive
Absolute value
200
4.25
200
True or False you need common denominators when multiplying fractions?
False - no common denominators needed
200
What place value is two digits after the decimal point
hundredths
200
Maya buys a notebook for $3.45 and a pen for $1.80. If she pays with a $10.00 bill, how much change should she receive?
The total cost is $3.45 + $1.80 = $5.25. Subtracting this from $10.00 gives $4.75 in change.
300
The small upper number that tells you how many times to multiply the base by itself.
Exponent or power
300
Which number line movement best represents the expression -4 + 7?
A. Start at 0, move 4 units left, then move 7 units left.
B. Start at 0, move 4 units left, then move 7 units right.
C. Start at 0, move 4 units right, then move 7 units left.
D. Start at 0, move 7 units left, then move 4 units right.
B. Start at 0, move 4 units left, then move 7 units right.
300
16/9 or 1 7/9
300
Which of the following decimals has the greatest value?
A. 3.402
B. 3.42
C. 3.39
D. 3.043
Comparing digit by digit from left to right, 3.42 (or 3.420) has the largest value among the choices.
300
Evaluate the expression: 20 - (2 + 3) × 2
First, parentheses: 2 + 3 = 5. Next, multiplication: 5 × 2 = 10. Finally, subtraction: 20 - 10 = 10.
400
The number multiplied by itself in a power,
Base
400
What is the distance between -8 and 3 on a number line?
11
400
Tim ran 5/6 of a mile in the morning and 1/3 of a mile in the afternoon. How far did Tim run in total?
1 1/6 miles
400
Subtract 6.45 from 22.1.
Aligning the decimals as 22.10 - 6.45 gives 15.65.
400
15 + 7 × 2 – 11 + 35=
53
500
the result you get when you divide one number or quantity by another
Quotient
500
A scuba diver is at an elevation of -15 meters. They ascend 4 meters, and then descend 9 meters. What is their final position on a vertical number line?
-20 meters
500
Katie feeds her cat Elmer 2/3 cup a food each day. She buys a bag of cat food that contains 18 cups of dry food. How many days will that bag of food last?
27 days
500
What is the product of 3.5 and 2.4?
Correct! 3.5 times x 2.4 = 8.4, since there are two total decimal places in the factors.
500
(9+8 - 4^2) x 2 + 1
3