Vocabulary & Basics
What is a rational number?
A number that can be written as a fraction.
2/5 + 1/5 = ?
3/5
0.4 + 0.35 = ?
0.75
Convert 2 1/2 to an improper fraction.
5/2
Ava ran 1.5 miles on Monday and 2.3 miles on Tuesday. How far did she run in all?
3.8 miles
What is the rule for adding fractions with the same denominator?
Add the numerators and keep the denominator the same.
3/4 - 1/8 = ?
5/8
2.7 - 1.8 = ?
0.9
Convert 9/4 to a mixed number.
2 1/4
A recipe needs 3/4 cup of sugar. You make half the recipe. How much sugar do you use?
3/8 cup of sugar
What is the rule for multiplying fractions?
Multiply the numerators and multiply the denominators.
2/3 x 3/5 = ?
2/5
0.6 x 0.3 = ?
0.18
1 1/3 + 2/3 = ?
2
Each student gets 0.25 Lb of clay. If there are 24 students, how many pounds of clay are needed?
6 Lbs. of clay
What's the first step when dividing fractions?
Multiply by the reciprocal of the second fraction.
4/9 divide 2/3 = ?
2/3
6.3 divide 0.9 = ?
7
3 1/2 - 1 3/4 = ?
1 3/4
A board is 3 3/4 feet long. You cut into 1 1/4 ft pieces. How many pieces can you cut?
3 pieces
What's the order of operations when solving math problems?
Parentheses, Exponents, Multiplication/Division (left to right), Addition/Subtraction (left to right)
Simplify: 18/24
3/4
Which is greater 0.68 or 0.7?
0.7
2 2/3 x 1 1/2 = ?
8/3 x 3/2 = 4
You have 2 1/2 yards of fabric and use 5/8 yard per pillow. How many pillows can you make?
4 pillows