Know how to multiply a whole number times a decimal. Make sure to be able to illustrate what is happening on a 100 grid. Example 3 X .2= (This means 3 groups of .2)
Know how to multiply a decimal times a decimal. Make sure to be able to illustrate what is happening on a 100 grid. Example .3 X .2= (This means .3 of .2 or I have .3 of a pizza. I give Jane .2 of my share. How much does Jane have of the WHOLE pizza)
Know how to estimate how big a product will be and then place the decimal point.
For example. .49 X 12.8= (I know .49 is about .5 or half. 12.8 is about 13. half of 13 is 6.5)
Then multiply as if there are no decimals 49 X 128 You can place decimal point based on estimate or count decimal places.
Know how to divide a whole number and decimal using base 10 blocks. 2.4 divided by 8= (know what question this asks)
Know how to divide a decimal by a decimal using base 10 blocks. 2.4 divided by .8=
Know how to divide two decimals by making the divisor a whole number. For example 43.2 divided by .6 will have the same quotient as 432 divided by 6 since both the dividend and divisor got ten times bigger.
Study and reread your notes.
Redo homework problems.
Ask me questions in class
Check blog for practice problems during the week.
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