Operations with Fractions
3/5 + 1/2
11/10
24 ÷ (6(2-1))
4
What property says that changing the grouping of numbers does not change the product/sum?
associative property
When you multiply exponents with the same base, you __________ the exponents.
add
Ms. Conrad baked a pumpkin pie and cut it into 8 slices. She brought 3/4 of the pie into work to share with other teachers. How many slices of pie did she bring into work?
6
7/12 - 5/18
11/36
((15 + 6) x 2) ÷ 6
7
What property says that changing the order of numbers does not change the product/sum?
commutative property
When you divide exponents with the same base, you __________ the exponents.
subtract
Jane is cutting out paper for an art project. She needs 3.5 inch strips. If her paper is 17.5 inches long, how many strips can she cut out?
5
1/8 x 5
5/8
9 - (5 x 2) ÷ (8-3)
7
Use the distributive property to multiply. Show work.
8 x 58
464
Multiply. Write in scientific notation.
(4 x 10-3) x (2 x 105)
8 x 102
Brady baked a batch of 36 chocolate chip cookies. He gave 2/3 of them away to family. How many cookies does Brady have left for himself?
12 cookies
21 ÷ 3 1/2
6
14 ÷ (5 + 3 x 5 - (5 + 8))
2
Use the distributive property to multiply. Show work.
6 x 12 1/3
74
Multiply. Write in scientific notation.
(11 x 105) x (4 x 10-7)
4.4 x 10-1
A rectangular area of land made up of wheat farms has a length of 5 x 104 meters and a width of 6 x 103 meters. What is the area of the land? Express your answer in scientific notation.
3 x 108 square meters
8 + 21 ÷ 4 ÷ 3 x 16 - 7
29
Use the distributive property to multiply. Show work.
4 x 316
1264
Divide. Write in scientific notation and standard form.
(3 x 104) / (4 x 10-3)
The population of the United States is 3 x 108 and the population of the world is 7 x 109. How many times larger is the population of the world than the US?
About 2.3 times bigger.