Skip to lesson

Choose “Save as PDF” in the print dialog to keep a copy.

Cogito

Grade 7 Math · Chapter 4 · Lesson 4

Practice Worksheet

Signed Fractions and Decimals

The same rules, with messier numbers.

10 problems · about 19 minutes · 7.NS.A.1

NameDate

Figure — use these to answer the problems

Set two signed numbers and read the result off the line.
-10-8-6-4-20246810-3-2
-3 + 1 = -2
Start at-3
Add1
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

3 problems

  1. From “The Additive Inverse”

    −5 − (−8) = ?

    Answer

  2. From “Subtraction as Distance”

    3 − (−8) = ?

    Answer

  3. From “Adding Signed Numbers”

    −9 + 4 = ?

    Answer

Warm Up

Straightforward practice. Get the method working first.

3 problems

  1. −3.5 + 1.25 = ?

    Answer

  2. −1.5 + 4 = ?

    Answer

  3. 2.3 − 5.8 = ?

    Answer

Build It Up

The same ideas with more to keep track of.

2 problems

  1. −0.5 + −0.75 = ?

    Answer

  2. −2.5 − (−4) = ?

    Answer

Stretch Yourself

Mixed problems. Work out what kind of question it is before you start.

2 problems

  1. The Temperature

    From −2.5 °C the temperature rises 4 °C. What is it now?

    Answer

  2. The Drop

    From 1.2 the value falls 3.7. What is it now?

    Answer