1. Maths Decimals

2. How do I know what kind of decimal it is? We know the name of a decimal by counting how many places there are to the right of the decimal point. Number of PlacesDecimal NameExample 1tenths0.7 2hundredths0.05 3thousandths0.016

3. What are mixed decimals?  Mixed decimals are numbers with both whole numbers and decimals.  We know the name of a whole number by it’s place to the left of the decimal point.  In the number 128.765, 1 is in the hundreds place, 2 is in the tens place, 8 is in the ones place, 7 is in the tenths place, 6 is in the hundredths place, and 5 is in the thousandths place

4. How do you read decimals?  To read a decimal correctly, first find the decimal point.  Whole numbers are to the left of the decimal point; any numbers to the right of a decimal point form a decimal fraction.  Say “point” for the decimal point  The decimal 2164.511 is read as “two thousand, one hundred sixty-four point five hundred and eleven thousandths”

5. Zeros after the decimal point  Writing extra zeros after the decimal point does not change the value!  The decimals 0.2, 0.20, and 0.200 are equivalent decimals

6. Here are some practice problems. Let’s do them together. Let’s help each other understand. So… Open your Maths Notebook. Practice

7. Comparing Fractions to Decimals

13. 0.1

14. Comparing Fractions to Decimals 0.1 0.2

15. Comparing Fractions to Decimals 0.1 0.2 0.3

16. decimals 321.8 = 300 + 20 + 1 + 0.8 300.0 20.0 1.0 0.8 321.8

17. decimals 321.8 = 300 + 20 + 1 + 0.8 300.0 20.0 1.0 0.8 321.8

18. decimals 74.2 = 70 + ___ + 0.2 411.5 = ____ + 10 + 1 + 0.5 287.3 = 200 + 80 + 7 + ___ 682.2 = 600 + ___ + 2 + ___

19. decimals 74.2 = 70 + ___ + 0.2 4 411.5 = ____ + 10 + 1 + 0.5 287.3 = 200 + 80 + 7 + ___ 682.2 = 600 + ___ + 2 + ___

20. decimals 74.2 = 70 + ___ + 0.2 4 411.5 = ____ + 10 + 1 + 0.5 400 287.3 = 200 + 80 + 7 + ___ 682.2 = 600 + ___ + 2 + ___

21. decimals 74.2 = 70 + ___ + 0.2 4 411.5 = ____ + 10 + 1 + 0.5 400 287.3 = 200 + 80 + 7 + ___ 0.3 682.2 = 600 + ___ + 2 + ___

22. decimals 74.2 = 70 + ___ + 0.2 4 411.5 = ____ + 10 + 1 + 0.5 400 287.3 = 200 + 80 + 7 + ___ 0.3 682.2 = 600 + ___ + 2 + ___ 80 and 0.2