# Adding & Subtracting Positive & Negative Decimals (Directed Numbers)

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Directed Numbers
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Objective: I know how to add and subtract positive and negative decimals or directed numbers.

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Evaluate the following:
a) 1.12 + 3.1 =

b) 3.2 – 1.04 =

c) – 6.1 – 3.22 =

d) – 5.4 + 3.31 =

e) 1.5 + ( – 2.7 ) =

f) – 0.9 + ( – 1.5 ) =

g) – 5.6 – ( + 4.4 ) =

h) 4.7 – ( – 3.6 ) + (– 6.2 ) =

i) – 5.7 – ( – 32.5 ) – ( – 2.9) =

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