Topic 1
103 x 102 = ?
105 or 100,000
What decimal is missing from the pattern?
3.052 ? 3.054 3.055 3.056
3.053
Vince walks 0.87 miles each day. How far will he walk in all if he walks the distance each day for 14 days?
12.18 miles
One inch equals 2.54 centimeters. How many centimeters is 1 foot?
30.48 centimeters
What is the missing value?
50 x 10? = 5,000,000
50 x 105 = 5,000,000
Compare the values of the digit 7 in the number 6,074 and in the number 9,721.
In 6,074, the value of the 7 is 70. In 9,721, the value of the 7 is 700. 700 is 10 times bigger than 70.
A department stores sells 153 pairs of jeans for $29 each. Write an equation and solve to estimate the total sales for the jeans.
150 x 30 = j
j = 4,500
What is the missing factor?
__ x 0.15 = 2.52
A. 0.168
B. 1.68
C. 16.8
D. 168
C. 16.8
0.38 + 7.5 + 10.36 = ?
18.24
Marin is 58.73 inches tall. On her fifth birthday, she was 46.15 inches tall. How much has she grown since her fifth birthday?
12.58 inches
An auditorium has 28 rows of chairs with 118 chairs in each row. How many chairs does the auditorium have in all?
3,304 chairs
Xavier lives 4.4 miles from his school. Jake lives 0.75 times this distance from the school. How far from the school does Jake live?
3.3 miles
Name two numbers that round to 83.6 when rounded to the nearest tenth.
Answers will vary.
Example answers: 83.558, 83.59, 83.649, 83.61
Write "Yes" or "No" to tell if 12.7 will make each equation true.
30.34 + __ = 43.04
81.42 - __ = 68.72
__ + 16.74 = 29.81
__ - 3.75 = 6.32
Yes
Yes
No
No
Sebastian buys 26 boxes of toothpicks for a school project. There are 255 toothpicks in each box. What is the total number of toothpicks, t, in all of the boxes? Write and solve an equation for t.
26 x 255 = t
t = 6,630
Emily wants to swim 2,500 laps in the pool before a swim meet that is 16 weeks away. If she swims 160 laps per week for 16 weeks, will she meet her goal? How many laps will she swim?
Yes, she will swim 2,560 laps.
Jessie completed his homework in 52.752 minutes. What is this number rounded to the nearest tenth? Hundredth?
Tenth: 52.8
Hundredth: 52.75
Kai-Lee spent $3.47 on lunch. Bria spent $5.09 on lunch. Draw a bar diagram to model the equation and solve.
See bar diagram.
Answer: $8.56
A farmer has 24 crates of apples ready to sell. Each crate contains 209 apples. How many apples does the farmer have in all?
7,106 apples
What factors are equivalent to the below expression?
(125 x 1/100) x (8 x 1/10)
___ x ___
1.25 x 0.8