Remember: These are open-ended problems. There could be other solutions than the ones we are giving.
1. He will use the coupon and pay $.35 each. That would be $4.20 - $1 = $3.20 instead of $3.99.
2. Sara is right because there are more possibilities of getting an even number answer.
3. They bought curtain rods, bath mat, slacks, and a drill.
4. 36 ways
5. Use the formula d = r t. The rate is 5.4 km/hr. Students should draw a diagram first to help.
6. 145 ft, 10 in. Students need to remember to change feet to yards.
7. 24 cm by 36 cm. To get 4 times the area you need to double each dimension.
8. 20.57 feet or 20 ft 7 in.
9. 7 m by 1 m
10. Answers will vary depending on which shapes they choose.
11. They need to remember that the sum of the measures of the angles in a triangle is 180 degrees and that the sum of the angles of a quadrilateral is 360 degrees. Angle A = 125 degrees.
Patterns, Algebra, And Functions
12. Check chart for pattern. There are 11 possible pizzas.
13. 36 children. Use a tree diagram.
14. z + 1/2 z + ( z + 1/2 z) + 3 z = 888
Data, Statistics, And Probability
15. All heads; all tails; 1 head, 3 tails; 2 heads, 2 tails; 1 tail, 3 heads; the probability of 2 heads and 2 tails = 1/5 or 20%
16. There are 60 possibilities. Bar Graph-possible scale is
to count by 2's or 5's. Same for Line Graph. Check for
labels, title, and spacing. To make the Circle Graph,
children need to make ratios.
When they make the circle graph, they can use central angles or they can estimate. That is up to the teacher.
18. Answers will vary. Check diagrams.
HOW DID YOU DO?