Show:
Addition Properties
Comparing & Ordering
Decimals
Rounding Decimals
Estimating Sums
& Differences
Adding and Subtracting Decimals
100
What property does the equation below represent? 9 + 26 + 1 = 26 + 9 + 1
What is the Commutative Property
100
Use < , > or = to compare each pair of decimals 0.06 ______0.60
What is <
100
Round the decimal to the given place-value. 5.031; hundredths
What is 5.03
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
200
What property does the equation below represent? (27 + 5) + 15 = 27 + (5 + 15)
What is the Associative Property?
200
Use < , >, or = to compare the set of decimals 4.888_______4.880
What is >
200
Round the decimal to the given place-value. 0.0042; thousandths
What is 0.004
200
Estimate using Rounding. 75.38 + 22.04
What is 75 + 22 = 97
200
Add the decimals 0.724 + 6.458
What is 7.182
300
The property that states that the order in which numbers are added does not change the sum.
What is the Commutative Property?
300
Use <, >, or = to compare the set of decimals 2.03_____2.030
What is =
300
Round the decimal to the given place-value. 27.35; tens
What is 30
300
Estimate using Front-End Estimation 31.29 + 58.07
What is 31 + 58 = 89
300
Add the Decimals 1.325 + 0.81
What is 2.135
400
The property that states that the sum of any number and 0 equals the number.
What is the Identity Property?
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
Round the decimal to the given place-value. 3.4553; thousandths
What is 3.455
400
Estimate using rounding 12.045 + 11.81 + 12.3 + 11.56
What is 12 + 12 + 12 + 12 = 48
400
Subtract the decimals 148.90 - 121.36
What is 27.54
500
when using mental math you may have to _____________ numbers before moving them and grouping them.
What is decompose?
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
Round the decimal to the given place-value. 45.659; whole number
What is 46?
500
Estimate using rounding. 6.45 + 5.88 + 5.61 + 6.03
What is 6 + 6 + 6 + 6 = 24
500
Subtract the decimals 248 - 131.48
What is 116.52