Mental Math Class V

A chicken needs to be cooked for 2 hours and 20 minutes. It needs to be ready at 1:00 pm. At what time do I need to start cooking it?

• noon

• 11:40 am

• 10:40 am

• 9:30 am

Tags

CCSS.7.EE.B.3

The date is March 3rd. What was the date 1 week ago?

• March 10th

• February 25th

• February 24th

• February 23rd

Tags

CCSS.6.NS.B.3

I am a square with each side measuring 3 cm. What is my perimeter?

• 12 m

• 9 cm

• 3 dm

• 12 cm

Tags

CCSS.7.EE.B.3

I am thinking of a number. I double it and add 1. The answer is 17. What number am I thinking of?

• 7

• 8

• 9

• 10

Tags

CCSS.3.OA.A.3

CCSS.3.OA.D.8

What is 50% of 330?

• 33
• 150
• 165
• 3.3

Tags

CCSS.6.RP.A.3C

Denzil has 36 marbles. He loses 7 then wins 11. How many marbles does he have now?

• 20

• 30

• 40

• 50

. What least number should be added to 207 to make it exactly divisible by 25?

• 18

• 19

• 20

• 15

•What is the sum of the greatest 3-digit number and the smallest 3- digit number?

• 999

• 1099

• 10989

. I am a number between 130 and 140. I occur in the table of 17. What number am I ?

• 135

• 181

• 136

• 140

What do you get on multiplying smallest whole whole number with any natural number ?

• 2

• None

• 1

• 0