Comparing & Ordering
Decimals
Estimating Sums
& Differences
Adding and Subtracting Decimals
Evaluate Expressions
VOCAB
100
Use < , > or = to compare each pair of decimals 0.06 ______0.60
What is <
100
Estimate using rounding. 38.23 + 11.84
What is 38 + 12 = 51
100
Add the decimals 43.28 + 31.45
What is 74.73
100

Evaluate the expression d - 12.3 when d = 25 

12.7

100

Define Expression

A math problem without an equal sign

200
Use < , >, or = to compare the set of decimals 4.888_______4.880
What is >
200
Estimate using Rounding. 75.38 + 22.04
What is 75. + 22 = 97
200
Add the Decimals 1.325 + 0.081
What is 1.406
200

Evaluate the expression 30 - m when m = 0.85

29.15

200

Define Numerical Expressions 

An expression containing ONLY numbers 

300
Use <, >, or = to compare the set of decimals 2.03_____2.030
What is =
300
Estimate using Front-End Estimation 31.29 + 58.07
What is 31. + 58 = 89
300
Subtract the decimals 148.93 - 121.36
What is 27.57
300

Write the expression for the following phrase and then evaluate. 

A number (x) increased by 15.6 when x= 36.9 

x + 15.6

52.5

300

Define Algebraic Expression

An expression that contains numbers and variables 

400
Order each set of decimals from greatest to least. 5.222, 5.202, 5.022, 5.2222
What is 5.2222, 5.222, 5.202, 5.022
400

Estimate 12.045 + 11.81 + 12.3 + 11.56

What is 12. + 12. + 12. + 12. = 48

400
Subtract the decimals 248 - 131.48
What is 116.72
400

Suppose Alex scores 5 points fewer than Devon. What expression shows the number of points Alex scores? Define your variable. Evaluate the expression if Devon scores 14 points.

d - 5

9

400

Define Estimate

An educated guess using rounding or front end estimation to get an answer close to the real answer

500
Order each set of decimals from greatest to least. 0.04, 0.0404, 0.404, 0.0444
What is 0.404, 0.0444, 0.0404, 0.04
500

Kathleen swims 1.13 mi and bikes 24.8 mi. About how far must she run to complete the final part of a 31.93-mile triathlon?

about 6 miles

500

Emily buys boots for $39.99 and sneakers for $29.99. The tax on her purchase is $4.90. If Emily pays using a $100 gift card, what is her remaining balance?

$25.12

500

Let y = the number of home runs Maddy hit last season. Brianna hit 6 more home runs than Maddy. Write an expression that shows how many home runs Brianna hit. Then find how many Brianna hit if y equals 8

y + 6 

14

500

Define Variable

A letter that takes place of an unknown value

M
e
n
u