Mental math Competition - Math Week (5-6)

What is the value of  $3\left(x-8\right)$  when  $x=11$  ?

• 11

• 9

• 7

• 13

332x3=___?

• 932

• 969

• 669

• 996

Subtract 999 from 10. What do you have?

• 989

• 990

• -989

• -900

Put these numbers in order from greatest to least:

9.257

92.057

97.52

75.209

• 97.52 > 92.057 > 9.257 > 75.209

• 97.52 > 92.057 > 75.209 > 9.257

• 9.257 > 92.057 > 97.52 > 75.209

• 92.057 > 97.52 > 75.209 > 9.257

How many months in 12 years?

• 212

• 240

• 114

• 144

What is the largest 7-digit number that you can make using these cards?

• 9,784,321

• 9,784,123

• 9,874,321

• 9,874,312

What is the next number in this sequence?

7000, 6000, 5000, __

• 400

• 3000

• 4000

• 6000

What time is shown on the clock?

• 02 :40

• 02 : 20

• 2: 25

• 2: 15

There are 16 runners in a race and a half of them wear blue.

How many runners wear blue?

• 6

• 5

• 8

• 4

How many cones are there in the diagram?

• 6

• 2

• 3

• 11