
Test solutions with the detailed point scale. Add up your points and spot what to review.
1 Quadrilaterals / 4 pts
- A square. (1 pt)
- A rectangle. (1 pt)
- A rhombus. (1 pt)
- \(4 \times 9 = 36\) cm. (1 pt)
2 Equal parts / 3 pts
- One eighth, \(\dfrac{1}{8}\). (1 pt)
- \(\dfrac{3}{8}\). (1 pt)
- \(8 - 3 = 5\), so \(\dfrac{5}{8}\). (1 pt)
3 Library visitors / 4 pts
- 4 circles and a half circle: \(40 + 5 = 45\). (1 pt)
- Tuesday, with 20 visitors. (1 pt)
- \(45 - 35 = 10\) more. (1 pt)
- \(35 + 20 + 45 + 30 = 130\) visitors. (1 pt)
4 Points scored / 4 pts
- Ben, with 35 points. (1 pt)
- \(35 - 15 = 20\) points. (1 pt)
- \(30 + 25 = 55\) points. (1 pt)
- \(35 - 10 = 25\), so Eli. (1 pt)
5 Measuring / 2 pts
- It ends 3 small marks after 2: \(2\dfrac{3}{4}\) inches. (1 pt)
- 11 quarters minus 6 quarters is 5 quarters, which is \(1\dfrac{1}{4}\) inches. (1 pt)
6 Nail lengths / 3 pts
- 4 nails. (1 pt)
- \(3 + 2 = 5\) nails: three at \(1\dfrac{1}{2}\) and two at 2. (1 pt)
- 1 inch, since it has the tallest column of X marks. (1 pt)
Test yourself: quick challenge for Grade 3
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