Lesson 5 of 10 · Grades 3 to 4
Practice: Multiply two-digit by one-digit
Split each two-digit number into tens and ones, multiply both parts, and add. Ten questions follow, including two word problems and one answer to repair.
How to use this page
This page gives you ten more questions on the same idea as the lesson "Multiply two-digit by one-digit". Work through them at your own speed. Write your answer down or say it out loud before you open the answer box, so you give yourself a real chance to think.
If a question feels hard, go back to the lesson and look at the worked example again. Getting a question wrong is useful; it shows you the part that needs one more look.
Practice questions
Answer all ten questions in your notebook or in your head. Then open each answer to check your work.
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What is 2 × 43?
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86. 2 × 40 = 80 and 2 × 3 = 6, so 80 + 6 = 86.
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What is 3 × 31?
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93. 3 × 30 = 90 and 3 × 1 = 3, so 90 + 3 = 93.
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What is 4 × 26?
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104. 4 × 20 = 80 and 4 × 6 = 24, so 80 + 24 = 104.
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What is 5 × 48?
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240. 5 × 40 = 200 and 5 × 8 = 40, so 200 + 40 = 240.
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What is 7 × 23?
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161. 7 × 20 = 140 and 7 × 3 = 21, so 140 + 21 = 161.
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What is 8 × 34?
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272. 8 × 30 = 240 and 8 × 4 = 32, so 240 + 32 = 272.
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What is 6 × 57?
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342. 6 × 50 = 300 and 6 × 7 = 42, so 300 + 42 = 342.
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A box holds 36 books. How many books are in 9 boxes?
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324 books. 9 × 36 = 324.
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Each van carries 25 students. How many students can 6 vans carry?
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150 students. 6 × 25 = 150.
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The answer 4 × 35 = 120 is wrong. Find the mistake and give the correct answer.
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The tens part was multiplied wrongly. 4 × 30 = 120 and 4 × 5 = 20, so 4 × 35 = 140, not 120.