PEMDAS
(18 + 12) ÷ 5 + 8 =
14
A cookie recipe calls for 2 3/4 cups of flour and 1 5/8 cups of sugar. How many cups of flour and sugar are needed altogether?
4 3/8
936 ÷ 12 =
78
5/12 + 7/18
29/36
3, 8, 18, 38, 78, __, __
How to solve: The pattern is multiply by 2, then add 2. Answer: 158, 318
(36 ÷ 6) × (5 + 2) =
42
A ribbon was 15 3/4 feet long. Sarah used 6 5/8 feet to wrap gifts. How much ribbon is left?
9 1/8
5,376 ÷ 24
224
11/24 + 7/16
43/48
Find 32% of 750.
240
36÷(9−3)+5[8−(2+3)]
21
A gardener used 2/7 of a bag of fertilizer on Monday and 1/3 of the original bag on Tuesday. On Wednesday, she gave 1/4 of the remaining fertilizer to her neighbor. Question: What fraction of the original bag does she have left?
5/28
1,368 ÷ 24
57
11/20 + 7/15
61/60 = 1 1/60
1, 4, 10, 19, 31, 46, ____, ____, ____
64, 85, 109 Rule: Add consecutive multiples of 3 (+3, +6, +9, +12, +15, +18, +21, +24)
72÷[3(4+2)]+(9−5)−7
1
A baker used 1/4 of a bag of flour to bake bread and 2/5 of the original bag to bake cookies. Then he gave 1/3 of the remaining flour to a friend. Question: What fraction of the original bag of flour does he have left?
7/30
72,905 ÷ 86 =
847 R63
9 5/18 + 4 7/20 - 2 11/15 =
10 161/180
A television costs $680. It is on sale for 35% off. What is the sale price?
$442
[5−(18÷3)]×2+48÷(4+2)
6
A school ordered boxes of notebooks for students. During the first week, the school used 3/8 of all the notebooks. During the second week, it used 1/6 of the original amount. After that, the school donated 2/5 of the notebooks that remained to a community center.
Question: What fraction of the original notebooks does the school have left?
Answer: 11/40
(84,672 ÷ 56) x 14
21,168
18 11/24 - 6 5/18 + 3 7/16 =
15 89/144
A bicycle originally costs $480. The price increases by 18%. What is the new price?
$566.40