Practice problemGrade 5 · 5.NBT.B.5
1. CHOOSE A MODEL. Find the product 60 × 31 using the model you prefer. Show your work. 6 0 × 3 1 Area modelArray modelStandard algorithm
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Practice problemGrade 5 · 5.NBT.B.5
2.Two-step shopping.
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Practice problemGrade 5 · 5.NBT.B.5
3. COMPARE STRATEGIES. Find the product 28 × 46 using two different strategies. Show your work for each strategy. Then write a sentence telling which strategy you think is more eff
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Practice problemGrade 5 · 5.NBT.B.5
3. COMPARE STRATEGIES. Find the product 16 × 57 using two different strategies. Show your work for each strategy. Then write a sentence telling which strategy you think is more eff
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Practice problemGrade 5 · 5.NBT.B.5
3. COMPARE STRATEGIES. Find the product 76 × 39 using two different strategies. Show your work for each strategy. Then write a sentence telling which strategy you think is more eff
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Practice problemGrade 5 · 5.NBT.B.5
3. COMPARE STRATEGIES. Find the product 70 × 46 using two different strategies. Show your work for each strategy. Then write a sentence telling which strategy you think is more eff
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Practice problemGrade 5 · 5.NBT.B.5
4. ESTIMATE THEN EXACT. A store sells 62 water bottles for $18 each. First, estimate the total cost using compatible numbers. Then find the exact total cost. Estimate (using compat
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Practice problemGrade 5 · 5.NBT.B.5
4. ESTIMATE THEN EXACT. A store sells 50 water bottles for $76 each. First, estimate the total cost using compatible numbers. Then find the exact total cost. Estimate (using compat
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Practice problemGrade 5 · 5.NBT.B.5
4. ESTIMATE THEN EXACT. A store sells 57 water bottles for $92 each. First, estimate the total cost using compatible numbers. Then find the exact total cost. Estimate (using compat
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Practice problemGrade 5 · 5.NBT.B.5
4. ESTIMATE THEN EXACT. A store sells 51 water bottles for $33 each. First, estimate the total cost using compatible numbers. Then find the exact total cost. Estimate (using compat
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Practice problemGrade 5 · 5.NBT.B.5
5. FIND AND FIX. A student used an area model to find 53 × 27. There is a mistake. Find the mistake and correct it. 50 3 20 7 1,000 60 140 21
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Practice problemGrade 5 · 5.NBT.B.5
5. FIND AND FIX. A student used an area model to find 58 × 75. There is a mistake. Find the mistake and correct it. 50 8 70 5 3,500 560 210 40
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Practice problemGrade 5 · 5.NBT.B.5
5. FIND AND FIX. A student used an area model to find 25 × 16. There is a mistake. Find the mistake and correct it. 20 5 10 6 200 50 70 30
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Practice problemGrade 5 · 5.NBT.B.5
5. FIND AND FIX. A student used an area model to find 73 × 49. There is a mistake. Find the mistake and correct it. 70 3 40 9 2,800 120 550 27
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Practice problemGrade 5 · 5.NBT.B.5
6. EXPLAIN THE PRODUCT. The area model shows 38 × 24. Write a number sentence for each partial product. Then write the total product. 30 8 20 4
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Practice problemGrade 5 · 5.NBT.B.5
6. EXPLAIN THE PRODUCT. The area model shows 51 × 15. Write a number sentence for each partial product. Then write the total product. 50 1 10 5
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Practice problemGrade 5 · 5.NBT.B.5
6. EXPLAIN THE PRODUCT. The area model shows 17 × 51. Write a number sentence for each partial product. Then write the total product. 10 7 50 1
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Practice problemGrade 5 · 5.NBT.B.5
6. EXPLAIN THE PRODUCT. The area model shows 13 × 33. Write a number sentence for each partial product. Then write the total product. 10 3 30 3
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Practice problemGrade 5 · 5.NBT.B.5
7. CREATE A STORY. Write a real-world shopping story that matches the expression 56 × 18. Include what the numbers represent and a question. You do not need to solve it.
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Practice problemGrade 5 · 5.NBT.B.5
7. CREATE A STORY. Write a real-world shopping story that matches the expression 19 × 64. Include what the numbers represent and a question. You do not need to solve it.
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Practice problemGrade 5 · 5.NBT.B.5
7. CREATE A STORY. Write a real-world shopping story that matches the expression 29 × 41. Include what the numbers represent and a question. You do not need to solve it.
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Practice problemGrade 5 · 5.NBT.B.5
7. CREATE A STORY. Write a real-world shopping story that matches the expression 80 × 3. Include what the numbers represent and a question. You do not need to solve it.
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Practice problemGrade 5 · 5.NBT.B.5
8. ERROR ANALYSIS. A student solved 67 × 29. The work is shown below. There is an error. Find the error and explain how to fix it. 6 7 × 2 9 6 0 3 1 , 3 4 0 1 , 4 0 3
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Practice problemGrade 5 · 5.NBT.B.6
1. BUILD THE QUOTIENT WITH AN ARRAY. Use the array to find the quotient. 84 ÷ 6 =
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