Adding Decimals
Add the decimals 10.30 + 11.50
What is 21.80
Subtract the decimals 13.62 - 11.41
What is 2.21
Add the decimals 11.6 + 9.418
What is 21.018
Line up the decimals:
11.600 *fill in with 0s
+ 9.418
Subtract the decimals 18.382 - 14.5
What is 3.882
Line up the decimals and fill in with 0s:
18.382
- 14.500
Emma buys a sandwich for $5.75 and a drink for $2.45.
How much does she spend in total?
$8.20
$5.75
+$2.45
Add the decimals 13.62 + 16.27
What is 29.89
Subtract the decimals 37.16 - 6.06
What is 31.10
Add the decimals 29.4 + 14.6289
What is 44.0289
Line up the decimals and fill in with 0s:
29.4000
+ 14.6289
Subtract the decimals 44.5 - 34.789
What is 9.711
Line up the decimals and fill in with 0s
REGROUP if there is "more on the floor"
44.500
- 34.789
A piece of ribbon is 12.6 meters long. Sarah cuts off 4.85 meters.
How much ribbon is left?
7.75 meters
12.60
- 4.85
Add the decimals 52.36 + 44.63
What is 96.99
Subtract the decimals 93.62 - 42.61
What is 51.01
Add the decimals 92.946 + 7.12
What is 100.066
Line up the decimals and fill in with 0s:
92.946
+ 7.120
Subtract the decimals 87.66- 19.7
What is 67.96
Line up the decimals and fill in with 0s:
87.66
- 19.70
Jake fills his car with 9.45 gallons of gas one week and 7.8 gallons the next week.
How many gallons of gas did he buy in total?
17.25 gallons
9.45
+ 7.80
Add the decimals 107.46 + 73.44
what is 180.90
Subtract the decimals 117.37 - 102.24
What is 15.13
Add the decimals 147.8 + 196.436
What is 344.236
Line up the decimals and fill in with 0s:
147.800
+196.436
Subtract the decimals 192.1 - 117.51
What is 74.59
Line up the decimals and fill in with 0s:
REGROUP if there's "more on the floor"
192.10
- 117.51
Three pears weigh 5.67 ounces, 4.25 ounces, and 6.13 ounces.
What is the difference between the weights of the heaviest pear and the lightest pear?
1.88 ounces
6.13
- 4.25
Add the decimals 654.22 + 325.67
What is 979.89
Subtract the decimals 792.69 - 202.34
What is 590.35
Add the decimals 792.678 + 208.3
What is 1,000.978
Line up the decimals and fill in with 0s:
791.678
+208.300
Subtract the decimals 946.9 - 767.971
What is 178.929
Line up the decimals and fill in with 0s:
REGROUP if there's "more on the floor"
946.900
- 767.971
Maria buys a pair of shoes that costs $72.40. She has a store coupon for $8.25 off.
Maria says that the cost with the coupon is $64.05.
Explain Maria’s error and find the correct cost.
Maria subtracted incorrectly and got $64.05 instead of $64.15. She likely made a mistake with place value when subtracting the cents.
$72.40
- 8.25
$64.15