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Doubling Word Problems
Halving Word Problems
Write a near double.
100
I think of a number. I double it and add 2. The answer is 22. What was my number?
What is 10?
100
I think of a number. I half it and add 10. The answer is 16. What is my number?
What is 12?
100
63
What is 31 + 1?
200
I think of a number. I double it and add 4. The answer is 20. What was my number?
What is 8?
200
I think of a number. I half it and add 5. The answer is 9. What is my number?
What is 8?
200
29
What is double 14 +1?
300
I think of a number. I double it and add 5. The answer is 25. What was my number?
What is 10?
300
I think of a number. I half it and add 5. The answer is 55. What is my number?
What is 100?
300
71
What is double 35 + 1?
400
I think of a number. I double it and add 5. The answer is 31. What is my number?
What is 13?
400
I think of a number. I half it and subtract 15. The answer is 29. What is my number?
What is 88?
400
87
What is double 43 + 1?
500
I think of a number. I double it and add 5. The answer is 69. What is my number?
What is 32
500
I think of a number. I half it and subtract 50. The answer is 2. What was my number?
What is 52?
500
45
What is double 22 + 1?