Multi-Digit Multiplication: math test, Grade 5 – download the PDF

1 Powers of 10 / 3 pts

a) Write \(10 \times 10 \times 10 \times 10 \times 10\) as a power of 10.

b) Give the value of \(10^3\).

c) Compute \(73 \times 10^4\).

2 Multiples of 10 / 3 pts

Compute: a) \(80 \times 30\) b) \(500 \times 60\) c) \(4{,}000 \times 20\)

3 Estimating / 3 pts

a) Estimate \(68 \times 41\). b) Estimate \(312 \times 28\). c) Maria says \(68 \times 41 = 2{,}788\). Is her answer reasonable? Explain.

4 Area model / 4 pts

Use the area model to compute \(27 \times 34\), with \(27 = 20 + 7\) and \(34 = 30 + 4\).

Find each partial product, then the total.

5 Standard algorithm / 4 pts

Use the standard algorithm. a) \(64 \times 53\) b) \(238 \times 46\)

6 Stadium seats / 3 pts

A stadium has 42 sections. Each section has 135 seats. a) Estimate the number of seats. b) Find the exact number. c) Write a sentence that answers the question.