1. I am a 2 digit number. I have a zero in the ones place and a 5 in the tens place.
- The tens place is 5, the ones place is 0. So the number is 50.
2. I am a 3 digit number. I have a 4 in the ones place, a 2 in the hundreds place and a 9 in the tens place.
- Hundreds place: 2, tens place: 9, ones place: 4. So the number is 294.
3. I am a number between 200 and 300. I have a 5 in the ones place and a 4 in the tens place.
- The number is between 200 and 300, so the hundreds digit is 2. Tens digit is 4, ones digit is 5. So the number is 245.
4. I am a 3 digit number. I have a 1 in the tens place, a 2 in the hundreds place and a 3 in the ones place.
- Hundreds place: 2, tens place: 1, ones place: 3. So the number is 213.
5. I am a 3 digit number. I have a 2 in the tens place, an 8 in the hundreds place and a 1 in the ones place.
- Hundreds place: 8, tens place: 2, ones place: 1. So the number is 821.
6. I am a 3 digit number. I have a 0 in the tens place, a 9 in the ones place and a 9 in the hundreds place.
- Hundreds place: 9, tens place: 0, ones place: 9. So the number is 909.
7. I am a 3 digit number. I have a 5 in the ones place, a 3 in the tens place and a 1 in the hundreds place.
- Hundreds place: 1, tens place: 3, ones place: 5. So the number is 135.
8. I am a 2 digit number and I am less than 70. You can divide me by 7. I have a 1 in the ones place.
- The number is less than 70, divisible by 7, and ends in 1. The multiples of 7 less than 70 are: 7, 14, 21, 28, 35, 42, 49, 56, 63. Among these, only 21 ends in 1. So the number is 21.
9. I am a 2 digit number and I am less than 30. You can divide me by 3. I have a 7 in the ones place.
- The number is less than 30, divisible by 3, and ends in 7. The multiples of 3 less than 30 are: 3, 6, 9, 12, 15, 18, 21, 24, 27. Among these, only 27 ends in 7. So the number is 27.
10. I am more than 20 and less than the sum of 18 and 12. I have a 2 in the ones place.
- The sum of 18 and 12 is 30. So the number is greater than 20 and less than 30, and ends in 2. The numbers between 20 and 30 that end in 2 are: 22. So the number is 22.
Parent Tip: Review the logic above to help your child master the concept of who am i math worksheet.