4). A restaurant has tables for 6 and tables for 4. There are 32 tables seating a total of 152 people. How many tables for 6 are there?
Guess | Number of tables for 4 | Number
of tables for 6 | Total number of seats |
1
| 16 | 16 |
4 X 16 + 6 X 16 = 160 (too many!) |
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Answer: ______________
5). My grandfather's farm has pigs and chickens. I counted a total of 88 legs, and 30 heads among them. How many chickens does my grandfather have?
Guess | Number of chickens | Number
of pigs | Total heads | Total legs |
1
| 10 | 20 |
30 | 2 X 10 + 4 X 20 = 100 (too many!) |
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Answer: ______________
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