WorksheetsMental Math Addition with Decimals
Total questions: 9
Worksheet time: 9mins
To align decimal points in a decimal addition problem annex zeros to write ________ so that all addends have the same number of decimal places.
equivalent decimals
inverse operations
associative property of addition
commutative
Because the ______, I know that 477.75 + (76.89 + 196.25) = (76.89 + 196.25) + 477.75 without adding.
Communative property of addition
equivalent decimals
inverse operations
associative property of additoin
Find the sum
7050.06
7056
7050.6
70.56
Estimate the sum.
79.1 + 32.4 =
(remember to use your place value chart and line up the numbers)
80
90
35
110
Use mental math to find the sum:
23.85 + 16.15 + 7.42
(a)
Match the following equation to the correct answer.
7.58 + 4.6
12.18
0.65 + 10.92
11.57
3.9 + 8.2
12.1
5.57 + 6
11.57
What is the sum of 5.48 and 9.6?
5.61 + 2.4
Lia and James went to the movies. The tickets are $3.00 each. Lia bought popcorn and a slushy for $8.50 together. James bought a slushy and nachos $12.00 together. How much money did they spend total?
26.50
2.650
3.00
53.65
