Add and Subtract Decimals
Ross must give his puppy a dose of 0.7mm of medicine every day. He fills an eyedropper with 1mm of medicine. How many milliliters of medicine should Ross remove from the dropper in order to have the correct dose for the puppy?
0.3mm
Jeff completed 3.5 online surveys after school yesterday. He spent 5.6 minutes on each survey. How many minutes did Jeff spend completing the surveys?
19.6 minutes
Ladonna and Kylie complete their homework. Ladonna spends 2/3 hour and Kylie spends 9/12 hour. How many total hours do Ladonna and Kylie spend doing their homework?
1 5/12 hours
A honeybee is 4/10 inch long. A bumblebee is 3/5 inch long. How much longer is the bumblebee than the honeybee?
2/10 inch
A sports store has 468 golf balls. They will be put into boxes that hold 18 balls each. What is the MINIMUM number of boxes needed for all of the golf balls?
26 boxes
Viv and Joel build robots. Viv's robot travels 1.89 meters. Joel's robot travels 1.49 meters. How many total meters do the robots travel?
3.38 meters
Carlee has 0.7 cups of sugar in the container. She uses 0.6 of the sugar in the container for cookies. How many cups of sugar did Carlee use to make cookies?
0.42 cups
Rachel purchased 3 1/2 pounds of grapes. She shared 1/2 of the grapes with her friends. How many pounds of grapes did Rachel share with her friends?
1 3/4 pounds
While fishing, Lisa catches a bass that weighs 9 1/10 pounds and a trout that weights 9 3/5 pounds. What is the combined weight, in pounds, of the two fish Lisa catches?
18 7/10 pounds
Which expression matches the words "eight less than the product of twelve and four'?
A. 8-(12x4)
B. 8-(12÷4)
C. (12x4)-8
D. (12 ÷4)-8
C. (12x4)-8
Coach Turner says that Mason ran a lap around the school track 0.76 minute faster than Arnold. Mason's time was 1.1 minutes. Which equation will help Mason solve the problem?
A. 1.1-0.76=0.34
B. 1.1-0.76=0.65
C. 1.1+0.76=1.86
D. 1.1+0.76=1.87
C. 1.1+0.76=1.86
Jaden's family bought 3.6 pounds of shrimp. Each pound of shrimp costs $5.70. How much did Jaden's family spend on the shrimp?
$20.52
Ava worked 4 2/3 hours. Carlton worked 3 1/12 hours. Darius worked 12 hours. How many more hours did Daris work that Ava and Carlton combined?
4 3/12 or 4 1/4
Kelsey walks 2/3 mile. Boris walks 1/4 as far as Kelsey walks. How many miles does Boris walk?
1/6
(or half of the points if you answered 2/12)
What is the area of the rectangle that Ms. Hribar drew?
1/3
Damion finds a piece of string 2.5 inches long. He uses 1.75 inched of the string for an art project. How many inches long is Damion's leftover piece of string?
.075 inches
Sam and Ben have 3 basketball games this weekend. Each games lasts 0.75 hours. How many total hours do Sam and Ben spend playing in the basketball games?
2.25 hours
Rhett estimates it will take him 3 1/3 hours to complete his science project. Rhett plans to spend 1/2 of that time on an experiment. How many hours will Rhett spend on the experiment?
1 2/3 hours
(or half of the points if you answered 1 4/6 hours)
Jaci purchases a sack of peanuts that weighs 5 pounds. She gives 1/4 of the peanuts to Tony. How many pounds of peanuts does Jaci give Tony?
1 1/4 pounds
Mr. Wilson bought a bag of birdseed and put half of it in his bird feeder. He split the other half equally among his 4 pet birds. How much of the bad did each pet bird get?
1/8 bag
Stacy has three bags of nails. The bags weigh 9.5 pounds, 3.8 pounds, and 2.8 pounds. How many total pounds do Stacy's bags of nails weigh?
16.1 pounds
Grace has 0.3 pounds of candy. She eats 0.6 of the candy this weekend. How many pounds of candy does Grace eat?
0.18 pounds
Mr. Cameron had 1/3 of a pan of lasagna. He cut the lasagna into 4 equal pieces and ate one piece for lunch. What fraction of the whole pan of lasagna did Mr. Cameron eat for lunch?
1/12
A gardener divided 4 gallons of liquid plant food equally into jars. Each jar contained 1/2 gallon of plant food. How many jars did the gardener use?
8 jar
Mr. Parker is graphing a quadrilateral. He wants the quadrilateral to be a trapezoid. He has already graphed vertices (1,1) (3,3) and (5,3). Which choice is a point that could be the 4th vertex?
A. (1,3)
B. (3,5)
C. (5,1)
D. (5,5)