Mental math competition

If the sides of square B are two times the sides of square A, then the area of square B would be

• the same as that of square A

• two times that of square A

• three times that of square A

• four times that of square A

If you leave a tip of 10% on a bill of $34, what is your total cost?

• $37.4

• $44.4

• $34.4

Tags

CCSS.6.RP.A.3C

How many times in a day do the two hands in a clock are at right angles to each other?

• 24 times

• 2 times

• 48 times

• 60 times

Tags

CCSS.3.MD.A.1

    What is the probability of flipping a 25¢ coin and receiving heads?

•  $\frac{1}{4}$  

•  $\frac{1}{2}$  

•  $\frac{1}{25}$  

Tags

CCSS.7.SP.C.7B

The square root of 71 is found between which two consecutive whole numbers?

• 70 and 72

• 8 and 9

• 60 and 80

Tags

CCSS.8.NS.A.2

In an enclosure, there are 11 rabbits and 3 ducks.

Calculate the number of legs.

• 40 legs

• 50 legs

• 60 legs

• 70 legs

Tags

CCSS.3.OA.A.3

Andrew can plant 3 flowers in 1 minute, how many flowers can he plant in 2 hours?

• 6 flowers

• 60 flowers

• 160 flowers

• 360 flowers

Tags

CCSS.6.RP.A.3B

Choosing a person at random, what is the probability that the person was born on a Monday?

• $\frac{1}{30}$

• $\frac{1}{12}$

• $\frac{1}{6}$

• $\frac{1}{7}$

Tags

CCSS.7.SP.C.7A

Find the next number in the sequence: 2, -10, 50, -250

• 500

• -500

• 1250

• -1250

Tags

CCSS.5.OA.B.3

What number divided by 10 is the same as that number minus 10?

• $\frac{1}{100}$

• $\frac{9}{10}$

• $\frac{100}{9}$

• $\frac{9}{100}$

Tags

CCSS.5.NBT.A.2