Problem Solving
Adding Decimals
Subtracting Decimals
Writing Equations/ Solving Multi-Step Problems
Rounding/ Estimating
100
Erin worked 25.75 hours last week. She worked 17.25 this week. How many total hours did she work these two weeks?
43
100
What is 0.456 + 0.321?
0.777
100
What is 65.68 - 32.24?
33.44
100
A 5th grade class has a total of 25 students. 13 of the students are girls. How many of the students are boys? Draw an equation or picture to represent the problem and then solve.
13 + x = 25 25-13= 12 x= 12
100
What is 45.67 rounded to the nearest tenth?
45.7
200
Manny has a ranch that is 15.47 acres. Jason has a ranch that is 12.55 acres. How many more acres is Manny's ranch than Jason's?
2.92
200
What is 12.34 + 23.01?
35.35
200
Susie is 48.6 inches tall and Marc is 42.67 inches tall. How much taller is Susie than Marc?
Susie is 5.93 inches taller than Marc.
200
A pet store has 5 cats, 26 turtles, 4 dogs, and 34 fish for sale. How many total pets are for sale at the pet store? Draw a picture or write an equation and then solve the problem.
5 + 26 + 4 + 34= x x= 69
200
What is 56.78 rounded to the nearest whole number?
57
300
Kayla has $53.96. Her friend Carol owes her $8.34. How much money will Erin have when Carol repays her?
$62.30
300
What is 0.498 + 0.76 + 0.3?
1.558
300
Leo bought crayons for $4.32, markers for $3.60, and a notebook for $5. How much more were the crayons than the markers?
The crayons were $0.72 more than the markers.
300
Nicole save $45.67 in the past three days. On Monday she saved $15.43 and on Tuesday she saved $4.56. How much did she save on Wednesday?
$15.43 + $4.56 + x = $45.67 x= $25.68
300
What is 2,345,678,768.567 rounded to the nearest ten million?
2,350,000,000
400
Draw a picture that represents the problem and then solve. Sam ordered 78 T-shirts in sizes small, medium, and large. If 34 T- shirts are medium and 21 T-shirts are large, how many T-shirts are small?
23
400
What is 12.3 + 32.56 + 7?
51.86
400
What is 14,567.04 - 32.5?
14,534.54
400
John has two $5 bills and three $10 bills. He spends $3.85 for a milkshake and $7.98 for a banana split. How much money does he have left? Draw a picture or write an equation and then solve.
$5 (2) + $10 (3)= $50 $3.85 + $7.98= $11.83 $38.17
400
Jacks garden is 16.78 square feet and Lilys garden is 2.77 square feet. What is the best estimate of the difference between Lilys garden and jacks garden?
About 14 square feet. 16.78 ---> 17 2.77 ---> 3 17 -3 = 14
500
Ms. Terranova, Ms. Papandrea, and Mrs. McSharry went to the bank. They deposited $345.98 into their shared bank account. They already had $234.76 in the account before the deposit. Then, Ms. Papandrea withdrew $4.35, Ms. Terranova withdrew $5.67, and Mrs. McSharry withdrew $5.45 so that they can buy lunch at Bagel Bistro. How much total did all three teacher's lunch cost? How much did they have in the account before they made their withdrawal? And how much money is in the account now after the teachers made the withdrawal?
Lunch= $15.47 Account before the withdrawal= $580.74 Account after the withdrawal= $565.27
500
What is 237.4 + 6.351 + 0.92 + 4?
248.671
500
Dominick had $20 saved. He used that money and spent $4.67 on cookies and $7.89 on drinks for his class. How much does he have left?
$7.44
500
Gwen weighed two colored metal balls during a science class. The green ball weighed 0.7 pounds and the red ball weighed 0.6 pounds. If Gwen places both balls on the scale at the same time, what will the scale read? Kara also performed the experiment and got a total of 1.5 pounds. What is the difference between Gwen's total and Kara's total?
If Gwen places both ball on the scale at the same time, the scale will read 1.3 pounds. The difference between Gwen's total and Kara's total is 0.2 pounds.
500
Use the chart to solve the problem: Crayons... $3.78 Markers ... $7.89 Paint ... $16.78 Pens... $2.67 Pencils... $1.99 About how much are all the supplies? Is that an overestimate or an underestimate? Explain your answer.
Crayons... $3.78 ---> $4 Markers ... $7.89 ---> $8 Paint ... $16.78 ---> $17 Pens... $2.67 ---> $3 Pencils... $1.99 ---> $2 Total estimate: $34 It is an overestimate because each number was rounded up.
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