Show:
Facts
Adding Decimals
Multiplying Decimals
Subtracting Decimals.
Dividing Decimals
100

When adding and subtracting decimals, it's important to line up the __________ in both numbers. 



Decimal point or place value

100

Add these decimals. 21.74 + 8.27

30.01

100

Multiply these decimals. 0.03 x 100

3

100

Subtract these decimals.

3.53 - 2

1.53

100

4.6 / 2

2.3

200

the number you are dividing into is called ____________

Dividend

200

Add these decimals.

17 + 9.54

26.54

200

Multiply these decimals. 0.7 x 2.6 

1.82

200

Subtract these decimals.

2.15 - 1.05

1.1

200

0.98 / 1

0.98

300

the number you are dividing by is called ______________

Divisor

300

Add these decimals. 6.125 + 18

24.125

300

Multiply these decimals.

0.23 x 7.5

1.725

300

Subtract these decimals.

10.71 - 0.7

10.01

300

4 divided by 50

.08

400

**Bonus**

1000 points 

1000 points 

400

Add these decimals. 4.67 + 29.1

33.77

400

Multiply these decimals. 2.5 x 3.04

7.6

400

Subtract these decimals.

1.72 - 0.8

0.92

400

49.6 / 6.2

8

500

How to divide two decimals.

  1. Write in long division form

  2. Make the divisor a whole number by moving the decimal point to the ______

  3. Move decimal point the same number of places in dividend

  4. Complete long division

  5. Carry up decimal point to final answer

Right

500

Add these decimals.

5.2 + 3.11

8.31

500

Multiply these decimals. 4.04 x 5.3

21.412

500

Subtract these decimals.

2.54 - 1.82

0.72

500

Divide 7.14 by 0.7

10.2