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Integer chips and zero pairs
Worksheet
Grade Level
Grade 7
7.62 Integer chips and zero pairs
0%
Skill Level
🔴 Hard
00:00
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25% to Medium
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Which model represents (-9) - (-19) and reads the final leftover chips correctly?
A
Start with 9 negative chips; add 10 zero pairs so enough negative chips can be removed; remove 19 negative chips; 10 positive chips remain; value +10.
B
Start with 9 negative chips; add 19 zero pairs so enough positive chips can be removed; remove 19 positive chips; 28 negative chips remain; value -28.
C
Start with 9 positive chips; add 19 zero pairs so enough negative chips can be removed; remove 19 negative chips; 28 positive chips remain; value +28.
D
Start with 19 negative chips; no zero pairs need to be added; remove 9 negative chips; 10 negative chips remain; value -10.
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