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Unit 1
Advanced Level

Unit 1 Advanced Worksheet

Challenge yourself with advanced addition and subtraction

15 Questions•30-35 minutes

Instructions

  • Read each question carefully before answering
  • Take your time to think through each problem
  • You can change your answers before submitting
  • Click "Submit Answers" to see your results
  • Use hints if you need help understanding a question
Question 1
Multiple Choice

678 + 459 = ?

Question 2
Fill In Blank

903 - 678 = ___

💡 Hint

Borrow carefully from zeros.

Question 3
True False

554 rounds to 600 when rounding to nearest 100.

Question 4
Multiple Choice

Estimate 487 + 529 by rounding to 100.

Question 5
Fill In Blank

If 235 + ___ = 400, what's the missing number? ___

💡 Hint

Work backward.

Question 6
True False

When rounding 750 to nearest 100, the answer is 800.

Question 7
Multiple Choice

Which shows regrouping: 345 + 123 or 678 + 245?

Question 8
Fill In Blank

Round 8,456 to the nearest 1000. ___

💡 Hint

Look at the hundreds.

Question 9
True False

1000 - 657 = 343

Question 10
Multiple Choice

Estimate 678 - 234 by rounding to 100.

Question 11
Fill In Blank

854 + 267 + 189 = ___

💡 Hint

Add two at a time.

Question 12
True False

Rounding makes estimation easier.

Question 13
Multiple Choice

500 - ___ = 237. What's missing?

Question 14
Fill In Blank

Round 9,874 to nearest 1000. ___

💡 Hint

8 in hundreds rounds up.

Question 15
True False

You can check subtraction by adding.

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