Unit 1: Basic Arithmetic
What is 42 - 8?
34
What angle is exactly 90 degrees?
A right angle.
List the first 4 multiples of 6
6, 12, 18, 24
What is the top number of a fraction called?
Numerator
Express 22/3 as a mixed number
7 1/3
In the problem A - B = C, A is the _____________ and B is the ______________.
What is the difference between whole numbers and natural numbers?
Whole numbers are all positive numbers including zero. Natural numbers are all positive numbers starting at 1.
What is a ray?
A ray has a starting point but no end point. It has an endpoint on one end and an arrow on the other.
List all factor pairs of 42
(1,42)
(2,21)
(3, 14)
(6, 7)
Write 24/42 in its lowest terms.
4/7
Express 57/9 as a mixed number
6 1/3
Divide: 816 / 8
102
Find f: 382 - f = 208
f = 174
What is the name of an angle that is less than 90 degrees?
An acute angle.
What is the GCF(6, 9)?
18
Find the least common denominator of 5/6 and 1/8 and write their equivalent fractions with that denominator.
20/24 and 3/24
Add: 3 2/5 + 3 3/5
7
Divide: 3/7 / 9/14
2/3
What is 526 / 6 ?
87R4 OR 87 2/3
What do we call two angles that add to equal a right angle?
Complementary angles
What is a composite number?
A number with 2 or more factor pairs.
Multiply: 3/4 x 2/3
1/2
Subtract: 7 11/12 - 3
4 11/12
Write sixteen million, three hundred thirty-three thousand, eighty and one thousand, two hundred four ten thousandths
16,333,080.1204
What is 602,564 - 129,875 ?
472,689
Angle A and angle B are supplementary angles. If angle A = 60 degrees find angle B.
Angle B = 120 degrees
Find the next two numbers in the sequence 2, 6, 18, 54, ...
162, 486
What is 4/7 divided by 1/7
4
Subtract: 5 - 21/6
1 1/2
If angle A and B are complementary angles and angle A measures 56 degrees? What is angle B?
34 degrees
Multiply: 171 x 282
48,222
The _________________ is the distance around a circle.
Circumference
Draw out the prime factor tree for 144
2 x 2 x 3 x 2 x 2 x 3
Subtract: 3/8 - 3/12
1/8
11 1/4 - 4 5/8
6 5/8
Simplify: (19-7) x (9-5) + 18 / 6 - (3 x 11)
18