Math is fun!

Multiplication

100

12 x 11 = 

132

200

15 x 20 = 

300

300

3.6 x 7 = 

25.2

400

Jane is having a party with 29 friends.  She wants to give everyone a box of candy.  A box of candy costs $1.25.  If Jane has $38, does she have enough money to get the candy?

1.25 x 29 = 36.25

YES

500

Tommy has 14 bouncy balls.  Samantha has 3 times as many bouncy balls.  How many bouncy balls does Samantha have?

14 x 3 = 42

Adding Fractions

100

1/2 + 1/2 = 

2/2 = 1

200

3/4 + 1/2 = 

3/4 + 2/4 = 5/4 = 1 1/4

300

6/14 + 3/28 = 

6/14 x 2 = 12/28

12/28 + 3/28 = 

15/28

400

1/4 + 2/8 + 3/24 = 

1/4 x 6 = 6/24; 2/8 x 3 = 6/24

6/24 + 6/24 + 3/24 = 

15/24

500

2/6 + 3/4 + 5/8 = 

2/6 * 4 = 8/24; 3/4 * 6 = 18/24; 5/8 * 3 = 15/24

8/24 + 18/24 + 15/24 = 41/24 or 1 17/24 

Reducing Fractions

100

Reduce 2/4

2 / 2 = 1; 4/2 =2

1/2

200

Reduce 5/15

5/5 = 1;  15/5 = 3

1/3

300

Reduce 40/120

40 / 40 = 1; 120 /40 = 3

1/3

400

Reduce 3/5 + 4/10

3/5 8 2 = 6/10 + 4/10 = 10/10 = 1

500

Reduce 2/3 + 4/9

2/3*3 = 6/9

6/9 + 4/9 = 10/9

10 - 9 = 1

1 1/9

PEMDAS

100

2 + 3 x 4 = 

3 x 4 = 12

12 + 2 = 14

200

(2+5) * 3 = 

2 + 5 = 7

7 * 3 = 21

300

50 - (4 + 10) * 3 = 

50 - 14 * 3

50 - 42 = 8

400

12 + 7 * 9 * 0 = 

12 + 63 * 0

12 + 0 = 12

500

55 x (11 - (37 x 2 / 37 - 1))

55 x ( 11 - (74 / 37 -1))

55 x (11 - (2-1))

55 x (11-1)

55 x 10 = 550

Subtracting Fractions

100

2/4 - 1/2 = 

1/2 * 2 = 2/4

2/4 + 2/4 = 4/4

4/4 = 1

200

6/8 - 3/4 = 

3/4 * 2 = 6/8

6/8 - 6/8 = 0

300

12/15 - 3/30 = 

12/15*2 = 24/30

24/30-3/30 = 21/30

21/30  /  3 =  3/10

400

5/8 - 2/6 = 

5/8*3 = 15/24; 2/6*4=8/24

15-8 = 7

7/24

500

22/24 - 2/8 - 1/4 = 

2/8 * 3 = 6/24; 1/4*6 = 6/24

22/24-6/24-6/24 = 10/24

10/24 = 5/12