Multiplying and Dividing Decimals: math test, Grade 5 – download the PDF

1 Powers of 10 / 4 pts

Compute without a calculator.

1. \(6.28 \times 10\)
2. \(0.053 \times 100\)
3. \(9.4 \div 100\)
4. \(2{,}700 \div 1{,}000\)

2 Multiplying decimals / 4 pts

Compute.

1. \(2.6 \times 7\)
2. \(0.45 \times 6\)
3. \(1.2 \times 0.8\)
4. \(3.5 \times 0.04\)

3 Place the decimal point / 3 pts

You know that \(47 \times 23 = 1{,}081\). Give each product.

1. \(4.7 \times 2.3\)
2. \(0.47 \times 23\)
3. \(4.7 \times 0.023\)

4 Division / 3 pts

Compute.

1. \(18.4 \div 4\)
2. \(0.54 \div 6\)
3. \(15 \div 0.3\)

5 Area model / 3 pts

Use a 10 by 10 grid that represents 1 whole to find \(0.4 \times 0.8\). Explain what you shade and give the product.

6 Training for a race / 3 pts

Marcus runs 1.75 miles every day for 6 days. His goal for the week is 12 miles.

1. How many miles does he run in 6 days?
2. How many miles are left to reach his goal?
3. He splits the remaining distance equally over 3 days. How far does he run each day?