Estimation
Computing with Decimals
+/- Expressions
Problem Solving
Mixed Bag
100
$5.99 + $3.99 to the nearest dollar
What is $10?
100
1.57 + 2
What is 3.57?
100
The sum of a number and 45
What is x + 45?
100
Sam paid $38.55 for his phone and $62.37 for his water bill. He also wrote a check to the cable company. If he paid a total of $157.41, how much did he pay the cable company?
What is $56.49?
100
A symbol used to represent an unknown number
What is a variable?
200
$5.25 + $18.72 to the nearest ten cents
What is $24 dollars (or $24.00)?
200
3 - .723
What is 2.277?
200
The difference of 10 and a number
What is 10 - x?
200
On a trip in Europe, Sarah drove 112.5 km, 41.8 km, and 109.5 km. Estimate the total distance she drove.
What is about 260 km?
200
When you find the nearest value of a number based on a given place
What is rounding?
300
$24.739 + $22.713 to the nearest cent
What is $47.75?
300
0.008 + 0.11 + 0.5 + 0.993
What is 1.611?
300
A man weighs m pounds. The two packages he is carrying weigh 10 pounds and d pounds. An expression showing the weight of the two packages
What is d + 10 (or 10 + d)?
300
The number of stamps that Erica has is 10 to the third power. The number of stamps that Jacob has is 9000 less than 10 to the fourth power. The stamp collector who has more.
What is neither? Erica has 1000 stamps. Jacob has 10000 - 9000, which is also 1000.
300
What the number ten is called in 10 to the 3rd power
What is the base?
400
26 + 49 + 14 + 78 + 36 to the nearest ten
What is 210?
400
Wendy bought shoes for $39.99 and sneakers for $29.99. The tax on her purchase was $4.90. If Wendy paid using a $100 bill, what was her change?
What is $25.12?
400
A baby gained 0.8 pounds since its last visit to the doctor. The baby weighed 24.5 pounds at its last visit. An expression showing the weight of the baby now
What is 24.5 + 0.8?
400
The weight of a bag of Life cereal is 62 ounces. This weight is rounded to the nearest ounce. To the nearest tenth, what is the greatest that the actual weight could be?
What is 62.4 ounces?
400
The first step in writing an equation to solve a problem
What is deciding the unknown and labeling it as a variable?
500
4,509.88 + 430.618 + 777.13 to the nearest tenth
What is 5717.6?
500
The value of the greater number when comparing 12 - 0.0009 with 12 - 0.00009
What is 11.99991?
500
65 less than a number
What is x - 65?
500
The sum of the digits of a 4-digit number is 12 and the product of the digits is 40. The digits are in order from least to greatest.
What is 1245?
500
This tells how many times you use the base as a factor
What is an exponent?
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