MathIsimple
Unit 1
Advanced Level

Unit 1 Advanced Worksheet

Challenge yourself with complex addition and subtraction problems including missing numbers and multi-step problems

15 Questions30-35 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

Sofia solved 47 + 28. She got 65. Is her answer correct?

Question 2
Fill In Blank

A number plus 38 equals 91. What is the number? ___

💡 Hint

Think: 91 - 38 = ?

Question 3
Multiple Choice

Marcus added two numbers and got 84. One number was 39. What was the other number?

Question 4
True False

If you add 47 + 36 + 12, you can add any two numbers first and then add the third.

Question 5
Fill In Blank

80 - ___ = 36. What number is missing?

💡 Hint

Try: 80 - 36 = ?

Question 6
Multiple Choice

Which is the best estimate for 48 + 33 before solving?

Question 7
Fill In Blank

72 - 28 - 15 = ___

💡 Hint

Subtract 28 first, then 15.

Question 8
True False

The sum of 25 + 38 is the same as the sum of 38 + 25.

Question 9
Multiple Choice

A store had 64 toys. They sold some and have 29 left. How many did they sell?

Question 10
Fill In Blank

What is 100 - 63? ___

💡 Hint

100 is 10 tens, or 9 tens and 10 ones.

Question 11
Multiple Choice

If 43 + 29 = 72, then what is 72 - 29?

Question 12
True False

The difference between 85 and 38 is less than 50.

Question 13
Fill In Blank

27 + 18 + 13 = ___

💡 Hint

Try adding 27 + 13 first to make 40!

Question 14
Multiple Choice

Max scored 28 points, Lily scored 35 points, and Jack scored 19 points. How many points in total?

Question 15
Fill In Blank

A mystery number minus 47 equals 28. What is the mystery number? ___

💡 Hint

If you subtract 47 and get 28, add them together!

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