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  • Round this number to the nearest 100,000. 9,740,399 Find the Difference. 29,867 – 14,938 Create a story problem for 388 – 235. Use a strategy you have learned to find the product. 3,418 x 8 Use a strategy you have learned to find the product. 7,347 x 5

Question

Round this number to the nearest 100,000. 9,740,399 Find the Difference. 29,867 - 14,938 Create…

Round this number to the nearest 100,000. 9,740,399 Find the Difference. 29,867 – 14,938 Create a story problem for 388 – 235. Use a strategy you have learned to find the product. 3,418 x 8 Use a strategy you have learned to find the product. 7,347 x 5

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Answer

  • Answer

Answers — Q1: $9,700,000$; Q2: $14,929$; Q3: $153$; Q4: $27,344$; Q5: $36,735$

Q1: Round this number to the nearest 100,000. 9,740,399

The correct answer is: $9,700,000$

Explanation

We look at the hundred-thousands place (the 100,000s digit) and the next digit (ten-thousands) to decide rounding.

Steps:

  1. Hundred-thousands digit in $9,740,399$ is the 7 (hundred-thousands place).
  2. The ten-thousands digit is 4, and since $4<5$ we round down.
  3. Therefore the rounded number is $$9,700,000$$

Q2: Find the Difference. 29,867 – 14,938

The correct answer is: $14,929$

Explanation

Subtract using place-value subtraction (or break apart).

Steps:

  1. Subtract: $$29,867 – 14,938$$
  2. Compute: $$29,867 – 14,000 = 15,867$$ then $$15,867 – 938 = 14,929$$
  3. Final result: $$14,929$$

Q3: Create a story problem for 388 – 235.

The correct answer is: $153$

Explanation (story + solution)

Story: Emma had 388 stickers. She gave 235 stickers to her friends. How many stickers does Emma have left?

Steps:

  1. Write the subtraction: $$388 – 235$$
  2. Subtract using regrouping: $$388 – 200 = 188$$ then $$188 – 35 = 153$$
  3. Answer: Emma has $$153$$ stickers left.

Q4: Use a strategy you have learned to find the product. 3,418 x 8

The correct answer is: $27,344$

Explanation

Use the distributive property (break into thousands and ones) or multiply directly.

Steps:

  1. Break apart: $$3,418 = 3,400 + 18$$
  2. Multiply each part by 8: $$3,400\times8 = 27,200$$ and $$18\times8 = 144$$
  3. Add: $$27,200 + 144 = 27,344$$

Q5: Use a strategy you have learned to find the product. 7,347 x 5

The correct answer is: $36,735$

Explanation

Use multiplying by 10 then halving, or distributive property.

Steps (by halving after ×10):

  1. Multiply by 10: $$7,347\times10 = 73,470$$
  2. Half that to get times 5: $$73,470 \div 2 = 36,735$$
  3. Final product: $$36,735$$

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