Place value chart:

* Helps us to read decimal numbers correctly

* Helps us to line up decimal numbers correctly when adding or subtracting

1. In your notebook, make meaningful notes for your forgetful selves

2. CYUqs → Do in your notebook. You chose where you want to start. If you need help, get help. If someone else needs help, give help.

Rewrite the problem. Neatly show your thinking. Work top to bottom (up and down). Circle your answer.

p181: 1, 2, 3, 4, 5, 6, 10a; 183: 17, 18, 19, 20, 21, 22, 23, 24, 25; p182: 11 (Volume 1, Ch3-1)

Check answers as you’re working. If you make a mistake, fix it.

3. Stuck? Choose to persevere: review your thinking, try different approaches, ask for help, search

I added 3.1 and 4.65 and got an answer of 4.96 What was my mistake?

When adding or subtracting decimals, remember to line up the decimal points. DO NOT align the numbers on the right-hand side, like you would with whole numbers

In a whole number, the decimal point is after the last digit (e.g., 15+4.88 should be written as 15.00+4.88). 

When numbers have different numbers of digits after the decimal point, add zeros to make the place values line up correctly. For example, 0.5 can be written as 0.50 to align with 1.25

Sum: the answer to an addition problem

Difference: the answer to a subtraction problem

Term: a part of an expression that is separated by addition or subtraction signs (e.g. in the expression 3.2 + 5, 3.2 and 5 are terms)