1 2 3 4 5
100
What is 5.48?
5.476, rounded to the nearest hundredths.
100
What is 2?
Round each number to the nearest one and subtract: 3.85 - 2.17
100
What is 7 tenths blocks?
The amount of base ten blocks I need to add 0.3 + 0.4.
100
What is 8.34?
Add 0.54 + 7.8
100
What is the order in which the numbers are added does not change the sum?
The Commutative Property of Addition.
200
What is 4.4?
4.35, rounded to the nearest tenths.
200
What is 30?
Round each number to the nearest one then add: 19.83 + 9.93
200
What is 1 ones, 8 tenths, and 9 hundredths?
The amount of base ten blocks I need to add 1.52 + 0.37.
200
What is 25.06?
Add 14.8 + 10.26
200
What is the way which the number are grouped does not change the sum?
The Associative Property of Addition.
300
What is 110.08?
110.079, rounded to the nearest hundredths
300
What is 44?
Round each number to the nearest one then subtract: 52.85 - 9.09
300
What is 2 ones, 8 tenths, then subtract 7 tenths?
The amount of base ten blocks I need to subtract 2.8 - 0.7.
300
What is 28.7?
Subtract 36 - 7.3
300
What is the sum of any number and 0 equals the number?
The Identity Property of Addition.
400
What is 2?
1.8, rounded to the nearest ones.
400
What is 6?
Round each number to the nearest one then add: 3.872 + 2.409
400
What is one ones and four tenths minus three tenths, three hundredths minus one hundredth?
The amount of base ten blocks I need to subtract 1.43 - 0.31
400
What is 2.22?
Subtract 8 - 5.78
400
What is Associative Property of Addition?
Identify the property:
11+ 7.7 + 4.3 =11 +(7.7 +4.3) __________
500
What is 2 pounds?
The weight of the new iPhone 7, 1.67 pounds, rounded to the nearest whole number.
500
What is 12?
Round each number to the nearest one then add:
2.5 + 1.8 + 4.2 + 3.3
500
What is model the number of blocks in each place-value position. To subtract, take-away blocks. Then count how many blocks are lest in each place value.
Describe how you would use base ten blocks to subtract decimals.
500
What is 29.95?
Subtract 58.67 - 28.72
500
What is Commutative and Associative Properties of Addition?
Identify the properties.
69+22=(60 +9) + (20+2)
= 60 +20 + 9+ 2 _______________
=(60+20) + (9 + 2) ________________
=80 + 11= 91






Adding and Subtracting Decimals

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