Mental Math
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100 822 - 378

444

Four hundred and Forty four

100

What is a quarter? 100

What is the lowest common multiple (LCM) of 2, 3 and 8? 24

Twenty-four

100

_____ x 6= 54

9

100

How many eggs are there in 8 dozen egg trays?

96 eggs

200

725 divided by 5

145

200

Write this improper fraction as a mixed fraction:

104/14

7 6/14

200

What is the only even prime number? No

200

Write the expanded form of 5 201.

(5 x 1000) + (2x100) + (1x1)

200 If there are 60 minutes in an hour, how many minutes are there in 3 hours?

180 minutes

300

643 + 99 + 1 379

2121

300

2/9 + 7/12 =

29/36

300

What is the next square number after 100? 121

one hundred and twenty-one

300

Jaydee has 15 bags of mangoes with each bag containing 35 mangoes. How many mangoes does Jaydee have in total?

525

300 How many days are there in a leap year?

366 days

400

9 X 8 X 3 X 100

21 600

400

Write a fraction bigger than 1/3.

NO whole number fractions.

1/2, 2/3

400

How many prime numbers are there between 7 and 33?

7

400 What is the place value of the THREE (3) in

1 310 954 ?

Hundred Thousands

400

What are the first 10 Whole Numbers? 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.

500

(25 + 75 + 57 + 165) x 2 1 288

one thousand, two hundred and twenty-eight

500 Write out the two fractions shown above in the illustration. Then find the total of the fractions.

1 6/8

500

On a Christmas tree, the Christmas lights come on at intervals of 3 seconds, 4 seconds and 6 seconds. When will all the lights come on together?

12 seconds

500

Nick has 16 sneakers, Joe has triple the number of sneakers and Paige has half the number of sneakers, that Joe has. If Eman has 9 more slippers than Paige, how many sneakers are there in total? 88 sneakers

500

What is the total of the first FIVE (5) square numbers?

Do NOT include one (1).

90

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