4th Grade Number and Shape Patterns Quiz: 10 Questions with Explanations

A 6, 12, 18, 24B 5, 10, 15, 20C 6, 11, 16, 21D 6, 11, 17, 22

Add 5 to 6 to get 11, then 16, then 21. Adding 6 each time gives the first wrong list.

A 24B 54C 18D 162

2, 6, 18, 54. The 18 is the third number and 162 is the fifth.

A 31B 27C 32D 34

Each term is 7 more than the one before, so the next term is 24 + 7 = 31.

A 20B 21C 18D 19

The terms are 4, 7, 10, 13, 16, 19. The numbers 18, 20 and 21 are skipped.

A Every number is evenB Odd and even numbers take turnsC Every number is a multiple of 3D Every number is odd

Adding an even number (2) to an odd number gives an odd number, so the terms stay odd.

A Add 9B Multiply by 2C Add 7D Subtract 7

9 is 7 more than 2 and 11 is 7 more than 4. The rule is add 7.

A 15B 16C 20D 14

The pattern adds 3 each time: 4, 7, 10, 13, 16. Multiplying 3 by 5 forgets the toothpick at the start.

A 40B 52C 64D 48

100, 88, 76, 64, 52. The number 64 is the fourth number.

A The numbers alternate between odd and evenB All the numbers are oddC All the numbers are evenD All the numbers end in 3

3, 8, 13, 18, 23 alternate between odd and even because 5 is odd.

A 40B 36C 46D 30

Add 6 five times: 16, 22, 28, 34, 40. Forgetting the 10 gallons gives 30.