Worksheets › Grade 3 › Place value › Multiplying by tens Multiplying by tens
Multiplying a one-digit number by 10, 20, 30 and so on, using facts and place value.
Make a sheet Download PDF The PDF has this sheet, its answer key and a guide for grown-ups.
How to help
Multiply the single digits, then keep track of the tens: 4 × 60 is 4 × 6 tens, which is 24 tens, or 240.
tens groups of ten multiple of 10 a number ending in 0: 10, 20, 30 and so on factor a number being multiplied product the answer to × Watch for: Dropping the zero: 4 × 60 = 24. Adding too many zeros: 4 × 60 = 2,400. Multiplying the tens digit but forgetting it stands for tens.
At home: Use money: three $10 bills are 3 × $10 = $30. How much are four $20 bills?
Sample sheet and answer key
Luna's Space Adventure
Grade 3 · Multiplying by tens · 3.NBT.A.3
Name Date
Astronaut Luna is exploring a far-off corner of space. Solve each problem to help Luna's mission go smoothly!
8 × = 400 3 × 30 = 6 × = 540 3 × 40 = 6 × 70 = 2 × 60 = 4 × = 200 6 × 10 = 4 × 70 =
How does the moon cut its hair?
1 6 × 80 = 2 6 × 50 = 3 4 × 10 = 4 6 × 90 = 5 3 × 50 = 6 2 × 10 = 7 8 × 60 = 8 9 × 60 = 9 5 × 40 =
20 = S40 = L70 = X90 = G120 = U150 = P160 = D200 = T300 = C480 = E540 = I
1 2 3 4 5 6 7 8 9
Sheet Luna's Space Adventure
Grade 3 · Multiplying by tens · 3.NBT.A.3
Answer key Astronaut Luna is exploring a far-off corner of space. Solve each problem to help Luna's mission go smoothly!
8 × 50 = 400 3 × 30 = 90 6 × 90 = 540 3 × 40 = 120 6 × 70 = 420 2 × 60 = 120 4 × 50 = 200 6 × 10 = 60 4 × 70 = 280
How does the moon cut its hair?
1 6 × 80 = 480 2 6 × 50 = 300 3 4 × 10 = 40 4 6 × 90 = 540 5 3 × 50 = 150 6 2 × 10 = 20 7 8 × 60 = 480 8 9 × 60 = 540 9 5 × 40 = 200
20 = S40 = L70 = X90 = G120 = U150 = P160 = D200 = T300 = C480 = E540 = I
E 1 C 2 L 3 I 4 P 5 S 6 E 7 I 8 T 9
Answer key New problems every time, three levels (gentle, core and stretch), themes to pick from, a second page if you want one. Each sheet comes with an answer key and a one-page guide for grown-ups.
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