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Third grade Unit 9 Math test
Contributed by: Yurcak
  • 1. For each number sentence, fill in the blank with a factor from 1 to 10 to make it true. 5 x7 <7 x ___
A) 2
B) 8
C) 1
  • 2. 4 x 3 > 4 x _____
A) 1
B) 4
C) 3
  • 3. 8 x 6 < 8 x _____
A) 7
B) 3
C) 4
  • 4. For the next set of story problems, write a number model with a letter for the unknown. Next, solve the problem and write your answer. Write your number model again with the answer to make sure that your answer makes sense.
A) 7 x 80 = M, the letter M stands for the mass of 7 blue jays
B) 7 x 8 =M, the letter M stands for the total mass of each blue jays.
  • 5. Seven blue jays have a mass of about ___________ grams.
A) 7 x 8 = 56 grams
B) 7 x 80 = 560 grams
  • 6. Solve.
A) C x 8 =240 or 240 divided by 8 = C the letter C stands for the number of California condors.
B) 8 x 240 = C or C divided by 240 = 8 C represents the weight of the California condor
  • 7. It would take about ____ California condors to equal the mass of of 80 Great Blue Herons.
A) 30 x 8 = 240 or 240 divided by 8 = 30
B) 240 divided by 80 = 3 or 3 x 80 = 240
  • 8. Solve.
A) 50 x N = 500 or 500 divided by 50 = and N stands for the number of Northern Cardinals.
B) 50 x 500 = N or N divided by 50 = 500 and N is the number of Northern Cardinals
  • 9. It would take about ____ Northern Cardinals to equal the mass of one Atlantic Puffin.
A) About 2,500, 50 x 500 = 2500 or 2500 divided by 50 = 500
B) About 10, 50 x 10 = 500 or 500 divided by 50 = 10
  • 10. Solve the problem using the break-apart strategy . You may use pictures,mental math , or number sentences.
A) 150
B) 160
C) 130
  • 11. Solve the problem using the break- apart strategy. Again, use pictures, mental math, or number sentences to help you.
A) 180
B) 183
C) 190
  • 12. Solve. Use the picture to explain Ellen's thinking.
A) She broke 64 into 60 and 4. Then she multiplied 8 x 60 and 8 x4. She added the two products together to get 512.
B) All she had to do was add together 480 and 32 to get 512.
  • 13. Solve. Use a pretend clock, picture, open number line, or other strategies.
A) 2 hours 30 minutes
B) 2 hours 35 minutes
C) 2 hours 20 minutes
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