Expedition Zero Worksheet
Grade 7 Math CCSS 7.NS.A.1 - 7.NS.A.3
EXPEDITION ZERO WORKSHEET
Name:
Date:
Period:
Rulebook:
\( -(-a) = +a \) \( (+) \times (-) = (-) \) \( (-) \times (-) = (+) \) \( a \div \frac{b}{c} = a \times \frac{c}{b} \)
1
Base Camp: Conversions & Placement
Convert and classify as Terminating (T) or Repeating (R).
A. \( -\frac{5}{8} \) Decimal form
Decimal: _______ Type: [ ] T [ ] R
B. \( \frac{7}{12} \) Decimal form (use bar if needed)
Decimal: _______ Type: [ ] T [ ] R
C. \( -3.375 \) Simplified mixed number
Fraction: ______________
D. Number Line Plot: \( P = -1\frac{3}{4} \), \( Q = 0.6 \), \( R = -\frac{2}{5} \)
-2 -1 0 1 2
2
Climbing & Descending: Addition & Subtraction
Show work. Express answers in simplest form.
Problem 2A \( -6.45 + 11.8 \)
Work space:
Answer:
Problem 2B \( -\frac{5}{6} - \frac{3}{8} \)
Work space:
Answer:
Problem 2C \( 4\frac{1}{3} - \left(-2\frac{3}{5}\right) \)
Work space:
Answer:
Problem 2D \( -18.27 - 9.64 \)
Work space:
Answer:
EXPEDITION ZERO • GRADE 7 MATH CONTINUE TO PAGE 2 → PAGE 1 OF 2
EXPEDITION ZERO: MULTIPLICATION, DIVISION & SCENARIOS
Rational Numbers Practice • Part II
Student:
3
Elevation Ratios: Multiplication & Division
Simplify before multiplying fractions where possible.
Problem 3A \( \left(-\frac{8}{15}\right) \times \left(\frac{5}{12}\right) \)
Answer:
Problem 3B \( (-3.4) \times (-2.15) \)
Answer:
Problem 3C \( -4\frac{2}{3} \div 1\frac{1}{6} \)
Answer:
Problem 3D \( (-25.8) \div (-0.6) \)
Answer:
4
Expedition Field Scenarios
Set up an expression, show work, and include units.
Scenario 4A:
At 6:00 AM at Base Camp, the temperature was \(-8.4^\circ\text{C}\). By noon, the temperature rose by \(13.6^\circ\text{C}\). By 9:00 PM, an alpine storm caused the temperature to drop by \(9.7^\circ\text{C}\). What was the temperature at 9:00 PM?
Show expression and calculation:
Final Answer:
Scenario 4B:
A deep-sea submersible begins at an elevation of \(-142\frac{1}{2}\) meters. It ascends at an average rate of \(12\frac{3}{4}\) meters per minute for \(8\) minutes. What is the submersible's new elevation relative to sea level?
Show expression and calculation:
Final Answer:
5
Navigator's Audit: Error Analysis
Critical Analysis
Cadet Jordan's Work:
Evaluate: \( -5 - (-12) + (-8) \)
Step 1: \( -5 - 12 + (-8) \)
Step 2: \( -17 + (-8) \)
Step 3: \( -25 \) ✗
1. Explain the specific error in Step 1:
2. Provide the correct evaluation and answer:
Correct Value:
EXPEDITION ZERO • GRADE 7 MATH EXPEDITION COMPLETE PAGE 2 OF 2
