Wake County Public School System, 2012
Transparency/Blackline Master Grade 5 Day 32 Standard 5.NBT.7
Name: ______
Date: ______
Problem Solving with Decimals
Incorrect Change
Aiden purchased a book for $8.56 at the local bookstore with a $10 bill. The cashier gave her $2.56 in change. Aiden told the cashier to check her math again. What did the cashier do wrong?
Distance Traveled
Kenneth drove 35.95 miles to his grandmother’s house. His cousin Billy drove 63.1 miles to meet him there. How much farther did Billy drive than Kenneth?
Name: ______
Date: ______
Find the Missing Decimal Number
1. Copy the missing number problems below onto your MathBoard.
8.17– ____
4.38 / 5.76
– ____
2.9
2. Work together to find the missing numbers.
3. By yourself, write three missing number problems on your MathBoard. Exchange boards with your partner to solve.
Wake County Public School System, 2012
Answer Key Grade 5 Day 32 Standard 5.NBT.7
Wake County Public School System, 2012
Blackline Master Grade 5 Day 32 Standard 5.NBT.7
Problem Solving with Decimals
Answer Key
Incorrect Change: $10.00 – $8.56 = $1.44
Distance Traveled: 63.1 – 35.95 = 27.15 miles
Find the Missing Decimal Number
Answer Key
8.17– 3.79
4.38 / 5.76
– 2.86
2.9
Name: ______
Date: ______
Subtracting Decimals
Directions: Solve the following problems. Use estimation to determine if your answers
make sense.
1. 4.57 – 2.9 = ______2. 1.67 – 0.28 = ______
3. 25.7 – 1.65 = ______4. 34 – 15.34 = ______
5. 93.1 – 77 = ______6. 59.26 – 42.7 = ______
7. Jacqueline cut 1.53 yards of ribbon from a roll that had 5 yards of ribbon on it. How
many yards of ribbon are left on the roll?
Wake County Public School System, 2012
Answer Key Grade 5 Day 32 Standard 5.NBT.7
Subtracting Decimals
Answer Key
1. 4.57 – 2.9 = 1.67 2. 1.67 – 0.28 = 1.39
4.57 1.67
– 2.9 – 0.28
1.67 1.39
3. 25.7 – 1.65 = 24.05 4. 34 – 15.34 = 18.66
25.7 34
– 1.65 – 15.34
24.05 18.66
5. 93.1 – 77 = 16.1 6. 59.26 – 42.7 = 16.56
93.1 59.26
– 77 – 42.7
16.1 16.56
7. Jacqueline cut 1.53 yards of ribbon from a roll that had 5 yards of ribbon on it. How
many yards of ribbon are left on the roll?
5
– 1.53
3.47
Wake County Public School System, 2012
Blackline Master Grade 5 Day 32 Standard 5.NBT.7
Name: ______
Date: ______
Subtracting Decimals Journal Prompt
Why is it important to write numbers with the same place value beneath each other when you are subtracting decimals using a vertical format? Use appropriate math vocabulary in your explanation.
Wake County Public School System, 2012