Notes

Slide Show

Outline

1	Decimal Operations
2	The Key to understanding Decimal Operations is to first understand place value
3	Place value table
4	Place value table
5	Place value table
6	Place value table
7	Place value table
8	Place value table
9	Place value table
10	Place value table
11	Place value table
12
13	Place value table
14	Place value table
15	Place value table
16	Place value table
17	Place value table
18	Place value table
19	Place value table
20	Place value table
21	Rounding
22	Rounding
23	Rounding
24	Rounding
25	Place value table
26	Place value table
27	Place value table
28	Place value table
29	When adding or subtracting numbers with decimal points, you must line up the decimal points.
30	2.4 + 7.8
31	2.4 + 7.8 Re-Write Vertically
32	2.4 + 7.8 Re-Write Vertically
33	2.4 + 7.8 Re-Write Vertically
34	Re-Write Vertically
35	Subtracting Decimals Line up Vertically – put the first decimal on top. Fill “empty spaces” with “0”
36	Subtracting Decimals Line up Vertically – put the first decimal on top. Fill “empty spaces” with “0” 60.14 – 37.28
37	Subtracting Decimals
38	Subtracting Decimals
39	Subtracting Decimals
40	Subtracting Decimals
41	Subtracting Decimals
42	When multiplying numbers with decimal points, you must multiply as normal then count up the TOTAL number of digits after the decimal point. This will be the number of digits after the decimal point in the final answer.