Grade 4 Unit 1 Assessment Place Value, Addition & Subtraction
Answer Key *All answers are worth 1 point unless otherwise noted* 1.
D
2.
4.NBT.2 6.
A 4.NBT.4
11. D
4.OA.5
B
3.
4.OA.5 7.
B
12. B
D 4.NBT.4
13. C
4.NBT.3
4.
4.NBT.4 8.
4.NBT.2
A
4.NBT.2
B
5.
4.NBT.4 9.
A
4.NBT.3 10.
4.NBT.4 14. A, C, D
C
D 4.NBT.3
15.
A, B
Two or fewer correct responses = 0 points
One or zero correct responses = 0 points
Three correct responses = 1 point
Two correct responses = 1 point
4.NBT.2
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4.NBT.3
16. B, C
17. A, B
18.
7043 - 1827 5216
19. a.
20.
Patterns will vary.
b. Rule: Add one more than the last time. (may be worded differently) c.
One or zero correct responses = 0 points
One or zero correct responses = 0 points
Two correct responses = 1 point
Two correct responses = 1 point
Three or fewer correct responses = 0 points Four correct responses = 1 point
Two or fewer correct responses = 0 points Three correct responses = 1 point
Pattern is inaccurate/incomplete and explanation is inaccurate/incomplete = 0 points Pattern is accurate = ½ point Explanation is accurate = ½ point Full accurate response = 1 point
4.OA.5
4.NBT.4
4.NBT.4
4.OA.5
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4.OA.5
Constructed Response 21. a. Student gives an accurate explanation: Sample explanation: A strategy I could use to compare these numbers is writing them in standard form. Then I will compare the place value of each digit. Each number has a 7 in the hundred thousands place, so I look in the next place value to the right. 750,110 has a 5 in the ten thousands place, so I know it is the greatest. With the two remaining numbers, I need to compare the values in the thousands place. 705,205 has a 5 in the thousands place, while 700,050 has a zero in the thousands place, so 705,205 is greater. Symbols I could use to show this comparison are , and =. b. Student gives correct answer: 750,110 > 705,205 > 700,050 or seven hundred fifty thousand, > 700,000+5000+200+5 > 700,050 one hundred ten 4.NBT.2 22. a. Student gives explanation: Sample explanation: After analyzing the problem I identified the information that will help generate the pattern. First, in the problem I am given a starting point of 8 which is the first term of the pattern. Next, I am given a rule for the pattern, which is that each number is increased by 5. So, starting from 8, 5 more are added to each term of the pattern. The end point of the pattern is the seventh term of the sequence. b. Student gives correct answer: 8, 13, 18, 23, 28, 33, 38 c. Student gives an accurate explanation: Sample explanation: Some features I observed in the pattern are that the digit in the ones place for each number alternates between 8 and 3, alternating between even and odd number. I also notice that the value in the tens place remains the same for two terms of the pattern, then it is increased by one. 4.OA.5 23. a. Student gives correct answer and shows work: 817, 551 butterflies migrated to Cape May in 2012 and 2013. b. Student gives explanation: Estimation show that my answer is reasonable because adding rounded numbers gives an estimated sum that can be compared to the answer. If the answer is close to the estimation, the answer is likely correct and makes sense. c. Student shows estimation process: 384,251 +433,300 817,551
400,000 +400,000 800,000
4.NBT.4 Copyright © Swun Math Grade 4 Unit 1 Assessment (Answer Key) Page 3
Points 1
1
1
0.5 0.5
0.5 1
0.5