Counting by 5's, 10's, 25's, an 100's
Numbers and Counting, and more...
 
1. EASY

What comes next: 120, 130, 140, 150, ...

 
2. EASY

What comes next: 35, 40, 45, 50, ...

 
3. EASY

What comes next: 200, 300, 400, 500, ...

 
4. EASY

What comes next: 50, 100, 150, 200, ...

 
5. MEDIUM

What comes next: 165, 190, 215, 240, ...

 
6. MEDIUM

Bob is counting by 100s and reaches 470 on his third number. What is his starting number?

 
7. MEDIUM

Maurice counts by 50s and reaches 550 on his 4th number after the initial number. What was his initial number?

  1. 550
  2. 400
  3. 450
  4. 350
  5. None of the above
 
8. MEDIUM

Olivier starts at 1000 and counts down to 0 by 100s. Olivia starts at 0 and counts up to 1000 by 100s. Who will reach their destination first?

  1. Olivier
  2. Olivia
  3. They will finish at the same time
  4. Neither will reach their destinations
  5. None of the above
 
9. HARD

Albus and Belina are playing a game. Albus starts by saying a one-digit number. Belina then says the number five after Albus' number. Albus then says the number five after Belina's number. The two players alternate back and forth until a number greater than 100 is first reached and becomes the winning number.
If Albus starts by saying 6, what would be the winning number? Who would say the winning number?

  1. 106, said by Albus
  2. 106, said by Belina
  3. 101, said by Albus
  4. 101, said by Belina
  5. 100, said by Belina
 
10. HARD

Alexandra counts by 5s, starting at 945. Alexandre counts by 25s, starting at 825. Alexandria counts by 50s, starting at 500. Alexander counts by 100s, starting at 200. Who will count to 1000 first?

  1. Alexandra
  2. Alexandre
  3. Alexandria
  4. Alexander
  5. None of the above