Place Value & Number Sense
Operations
Pattens in number sequence
Word problems
Riddle
100

What is the place value of the digit 7 in 472,981? 

(20 seconds)

ten thousands

100

5 + 3.2 × 2

11.4

100

Find the next number:
2, 5, 10, 17, 26, ___

37

(Pattern: add 3, 5, 7, 9, next add 11)

100

I am a three-digit number.

  • My tens digit is four more than my ones digit.

  • My hundreds digit is three less than my tens digit.

  • The sum of my digits is 14.

What number am I?

473

150

What is the smallest 6-digit number you can make using the digits 3, 0, 5, 1, 8, and 2 (each only once)?

102,358

(Note: The smallest 6-digit number can't start with 0.)

150

30 - 2.5 ÷ 0.2

17.5

150

Find the next numbers:
3, 6, 18, 72, 360, ___

2160
(Multiply by 2, then 3, then 4, then 5, next multiply by 6)

150

I am a three-digit number.

  • My hundreds digit is twice my ones digit.

  • My tens digit is three less than my hundreds digit.

  • The sum of my digits is 17.
    What number am I?




854

200

Write Three thousand, twenty-five and seventy-four hundredths in standard form

3,025.74

200

(12.6 ÷ 3) + (4.5 × 2) − (1.2 × 3)

9.6

200

Find the next number:
49, 64, 81, 100, ___

121

(49 = 7 * 7, 64 = 8 * 8, ...)

200


  • My hundreds digit is half my tens digit plus 1.

  • My ones digit is 2 less than my hundreds digit.

  • The sum of my digits is 12.
    What number am I?


462

250

Write 201.354 in expanded form

200 + 1 + 0.3 + 0.05 + 0.004

250

(2.5 + 3.1) × (4 – 1.5)

14

250

Find the next two numbers:
2, 3, 5, 9, 17, 33, ___, ___

65, 129
(Each term is previous term × 2 – 1:

250

A teacher has 36 pencils, 60 erasers, and 84 rulers. She wants to create identical supply kits using all the items with no extras left over.


What is the greatest number of kits she can make?

12

250

I am a three-digit number.

  • My hundreds digit is half my tens digit plus 2.

  • My ones digit is 3 less than my hundreds digit.

  • The sum of my digits is 17.
    What number am I?


683

300

Write 2.06 as a fraction.

103/50

300
(8.4 + 3.6) ÷ (3 + 4 ÷ 2)

2.4

300

Find the next number:
8, 12, 18, 27, 40.5, ___

60.75
(Pattern: Multiply by 1.5 each time)

300

Three buses leave the station at 6:00 a.m.

  • The first bus returns every 36 minutes,

  • The second every 48 minutes,

  • The third every 60 minutes.

At what time will all three buses be at the station together again?

6:00 p.m.

300

I am a three-digit number.

  • My hundreds digit is one-third of the sum of my tens and ones digits.

  • My tens digit is two more than my ones digit.

  • The sum of my digits is 16.
    What number am I?


475

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