Dollars and Bills I am learning to add integers (positive and negative numbers). e.g. -5 e.g. +5

SAMPLE PROBLEM Susan finds $7 in her piggy bank …… = ….. Unfortunately she owes her sister $5. Recorded as -5 ……… + …… = ….. Recorded as = …..

SAMPLE PROBLEM = = …... These are the coins that Susan has ($7). This is the amount of money she owes her sister ($5).

SAMPLE PROBLEM Step 1: She must use some of the money to pay back her sister. That means she is left with $ = 0 So… = 2 = = …... The amount of money she now owes her sister.

Now let’s try one together Step 1: We need to split the 8 so that some of it can be used to pay back the $3 we owe. On a piece of paper split the $8 into $3 (to pay back the debt) and the amount you will have left over. Do this now = ….

Now let’s try one together Step 2: Now use the $3 to pay back the debt. Write the equation that shows this on your paper now = ….

Now let’s try one together Step 3: We now know what’s left so it’s time to answer our question. On paper write your answer to = ? = ….

Now try these questions on your own. 1) = …. 2) = …. 3) = …. 4) = …. 5) = …. 6) = …. 7) = …. 8) = …. 9) = …. 10) = ….

Only click again if you have completed all the questions on the previous slide and you are ready to see the answers. 1)3 2)5 3)4 4)6 5)13 6) 6 7) 7 8) 7 9) 9 10) 16 Need some more practise? Try Pg65 of Teacher Tools Addition and Subtraction Book Numeracy resourcesNumeracy resources