Adding Decimals
Subtracting Decimals
Multiplying Decimals
Dividing Decimals
Vocabulary
100
2 ones 3 thousandths + 6 ones 1 thousandth
What is 8.004
100
5 tenths – 3 tenths
What is 0.2
100
5 times as much as 7 tenths
What is 3.5
100
1.6 ÷ 4
What is 0.4
100
The answer in a division problem
What is quotient
200
0.74 + 0.59
What is 1.33
200
9 hundreds 5 hundredths – 3 hundredths
What is 900.02
200
5 groups of 2 hundredths
What is 0.1 or 0.10
200
2.1 ÷ 7
What is 0.3
200
The number that is divided by another number
What is dividend
300
7.44 + 0.774
What is 8.214
300
83 tenths – 6.4
What is 1.9
300
6 × 4.25
What is 25.5
300
0.048 ÷ 8
What is 0.006
300
An arrangement of objects in rows and columns
What is an array
400
1.8 + 13 tenths
What is 3.1
400
0.831 – 0.292
What is 0.539
400
Miles incorrectly gave the product of 7 × 2.6 as 14.42. Determine his mistake
What is 18.2. Miles multiplied the 7 by each place value in the other factor incorrectly.
400
5.6 ÷ 7 = 8 Determine reasonableness.
What is not reasonable. Correct answer = .8
400
A process or set of rules to be followed in calculations or other problem solving operations
What is algorithm
500
For his parents’ anniversary, Danny spends $5.87 on a photo. He also buys a balloon for $2.49 and a box of strawberries for $4.50. He spent this much money in all.
What is $12.86
500
A pen costs $2.09. It costs $0.45 less than a marker. Ken paid for one pen and one marker with a five-dollar bill. How much change did he receive after purchase?
What is .37
500
Determine the answer that is reasonable. 2.5 × 4 0.1 1 10 100
What is 10
500
12.48 milliliters of medicine were separated into doses of 4 mL each. How many doses were made?
What is 3.12 doses
500
An answer that makes sense based on the problem that is being solved
What is reasonableness
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