adding
17+32
49
52-7
45
What is a decimal?
A number that is used a decimal point to separate whole numbers from fraction parts representing value between numbers based on powers of 10
what is everything times 0
0
4/2
2
52+72
124
21-10
11
Why do we use decimals in math?
To represent non-whole numbers
11x5
55
2
230+2
232
21-5
16
What would happen if you forgot a decimal in your answer
Then the question would be wrong
4x2
8
110/5
22
1000+100
1100
152-6
506
Why decimals are.made
Two simplify calculations represent fractions more easily improve measurements for money science and engineering
6x7
42
42/2
21
3000+72
3072
1000-200
700
Do decimals mean something
Yes
11x10
110
55/55
1