GL PTM Mental Math Practice 1

1) Look at this series: 36, 34, 30, 28, 24, … What number should come next?

Tags

CCSS.2.NBT.A.2

2) Which of these numbers is not a multiple of 3?

81 111 73 27 105

Tags

CCSS.4.OA.B.4

3) What is 3/4 of 20 m?

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

4) The time is quarter to 7 in the evening. Write this in 24 clock time. (eg - 00:00)

Tags

CCSS.3.MD.A.1

5) How many thirds will make 5?

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2A

6. 6.      What number is halfway between 5.8 and 7.8?

Tags

CCSS.5.NBT.B.7

7)   What is the number 321 rounded to the nearest 100?

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

8)   If there are 30 days in June, how many days are there left after the 12^th June?

9)   How many weeks are 49 days?

Tags

CCSS.4.MD.A.1

10)   How many pairs are there if you have 16 socks?

Tags

CCSS.3.OA.A.3