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Mathematics, 4th grade
1. The weight (mass) of a clothespin is 9.2 g. Which of these is the best estimate of the total weight (mass) of 1,000 clothespins?
900 g
9,000 g
90,000 g
900,000 g

2. Jo's recipe says to bake a cake for 25-28 minutes. About how long is this?
A quarter of an hour
Half an hour
An hour
An hour and a half

3. 2, 5, 11, 23,

Starting the pattern at 2, which of these rules would give each of the terms in the number pattern above?

Add 1 to the previous term and then multiply by 2.
Multiply the previous term by 3 and then subtract 1.
Multiply the previous term by 2 and then add 1.
Subtract 1 from the previous term and then multiply by 3.

4. Which of these could be the weight (mass) of an adult?
1 kg
6 kg
60 kg
600 kg

5. Ken measured the length of a blackboard using a 30 cm ruler. The blackboard was 6 cm less than 9 times the length of the ruler. What is the length of the blackboard?
264 cm
270 cm
276 cm
279 cm

Image pertaining to question 6
6. Figure 1 is a cone. Part of its surface is flat and part of its surface is curved. Which of the above solids (labeled A through D) has both a flat surface and a curved surface?

Image pertaining to question 7
7. Rita, Ina, and Lana take turns arranging 3 tiles. Each arranges the tiles in a different shape as shown above. Which of the following is true about the area of the shapes?
Rita's shape has a greater area than the others.
Ina's shape has a greater area than the others.
Lana's shape has a greater area than the others.
All of the shapes have the same area.

Image pertaining to question 8
8. The shape above is rotated by 90° clockwise. Which shape is the result?

Image pertaining to question 9
9. Each small square is equal to 1. There are 10 small squares in each strip. There are 100 small squares in each large square. What number is shown?

10. Which fraction is equal to 2/3?