G2 U2 Assessment Key
Grade 2 Unit 2 Assessment Skip Counting
Answer Key 1.
2.
3.
4.
5.
B
D
C
D
A
2.NBT.2
2.NBT.2
2.NBT.2
2.NBT.2
2.NBT.2
6.
7.
8.
9.
10.
B
D
D
D
B
2.NBT.2
2.NBT.2
2.NBT.2
2.NBT.2
2.NBT.2
11.
12.
Responses may vary. Sample response:
Responses may vary. Sample response:
The numbers are skipping by 2s beginning at 52 and ending at 74. The pattern in the ones place is 2, 4, 6, 8, 0, repeat. The tens place increases by one when the zero repeats.
The numbers are skipping by 100s starting with 300 and ending with 800. The tens and ones remain zeroes. The digit in the hundreds place increases by 1 each skip.
Does not/incorrectly names the skip count and does not/incorrectly describes the pattern in the ones place = 0 points Correctly names the skip count = ½ point Correctly describes the pattern in the ones place = ½ point Full correct response = 1 point Do not withhold points for poor handwriting, spelling, grammar, or punctuation. Students may be asked to read aloud an illegible response, or students may dictate their response.
Does not/incorrectly names the skip count and does not/incorrectly describes the pattern in the ones place = 0 points Correctly names the skip count = ½ point Correctly describes the pattern in the hundreds place = ½ point Full correct response = 1 point Do not withhold points for poor handwriting, spelling, grammar, or punctuation. Students may be asked to read aloud an illegible response, or students may dictate their response.
2.NBT.2 2.NBT.2
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13.
14.
Responses may vary. Sample response:
370
Kramer’s mistake is after 758 when he said, “759, 760, 761.” This is not correct when skip counting by 2s beginning at 748. He should not have included 759 and 761. Incorrect response = 0 points
Incorrect response = 0 points
Correct response = 1 point
Correct response = 1 point
Do not withhold points for poor handwriting, spelling, grammar, or punctuation. Students may be asked to read aloud an illegible response, or students may dictate their response.
2.NBT.2
2.NBT.2
15.
16. 980
700
Incorrect response = 0 points
Incorrect response = 0 points
Correct response = 1 point
Correct response = 1 point
2.NBT.2
2.NBT.2
Copyright © Swun Math Grade 2 Unit 2 Assessment (Answer Key) Page 2
17.
18.
Responses may vary. Sample response:
310, 320
The numbers are skipping by 2s beginning at 480 and ending at 490. The pattern in the ones place is 0, 2, 4, 6, 8, repeat. The tens place increases by one when the zero repeats.
One or zero correct responses = 0 points Both correct responses = 1 point
Does not/incorrectly names the skip count and does not/incorrectly describes the pattern in the ones place = 0 points Correct names the skip count = ½ point Correctly describes the pattern in the ones place = ½ point Full correct response = 1 point Do not withhold points for poor handwriting, spelling, grammar, or punctuation. Students may be asked to read aloud an illegible response, or students may dictate their response.
2.NBT.2
2.NBT.2
19.
20. 748, 750, 752, 754, 756, 758
Five or fewer correct responses = 0 points All six correct responses = 1 point
2.NBT.2
200
300
400
500
Incorrect response = 0 points Correct response = 1 point
2.NBT.2
Copyright © Swun Math Grade 2 Unit 2 Assessment (Answer Key) Page 3
600
Answer Key 1.
2.
3.
4.
5.
B
D
C
D
A
2.NBT.2
2.NBT.2
2.NBT.2
2.NBT.2
2.NBT.2
6.
7.
8.
9.
10.
B
D
D
D
B
2.NBT.2
2.NBT.2
2.NBT.2
2.NBT.2
2.NBT.2
11.
12.
Responses may vary. Sample response:
Responses may vary. Sample response:
The numbers are skipping by 2s beginning at 52 and ending at 74. The pattern in the ones place is 2, 4, 6, 8, 0, repeat. The tens place increases by one when the zero repeats.
The numbers are skipping by 100s starting with 300 and ending with 800. The tens and ones remain zeroes. The digit in the hundreds place increases by 1 each skip.
Does not/incorrectly names the skip count and does not/incorrectly describes the pattern in the ones place = 0 points Correctly names the skip count = ½ point Correctly describes the pattern in the ones place = ½ point Full correct response = 1 point Do not withhold points for poor handwriting, spelling, grammar, or punctuation. Students may be asked to read aloud an illegible response, or students may dictate their response.
Does not/incorrectly names the skip count and does not/incorrectly describes the pattern in the ones place = 0 points Correctly names the skip count = ½ point Correctly describes the pattern in the hundreds place = ½ point Full correct response = 1 point Do not withhold points for poor handwriting, spelling, grammar, or punctuation. Students may be asked to read aloud an illegible response, or students may dictate their response.
2.NBT.2 2.NBT.2
Copyright © Swun Math Grade 2 Unit 2 Assessment (Answer Key) Page 1
13.
14.
Responses may vary. Sample response:
370
Kramer’s mistake is after 758 when he said, “759, 760, 761.” This is not correct when skip counting by 2s beginning at 748. He should not have included 759 and 761. Incorrect response = 0 points
Incorrect response = 0 points
Correct response = 1 point
Correct response = 1 point
Do not withhold points for poor handwriting, spelling, grammar, or punctuation. Students may be asked to read aloud an illegible response, or students may dictate their response.
2.NBT.2
2.NBT.2
15.
16. 980
700
Incorrect response = 0 points
Incorrect response = 0 points
Correct response = 1 point
Correct response = 1 point
2.NBT.2
2.NBT.2
Copyright © Swun Math Grade 2 Unit 2 Assessment (Answer Key) Page 2
17.
18.
Responses may vary. Sample response:
310, 320
The numbers are skipping by 2s beginning at 480 and ending at 490. The pattern in the ones place is 0, 2, 4, 6, 8, repeat. The tens place increases by one when the zero repeats.
One or zero correct responses = 0 points Both correct responses = 1 point
Does not/incorrectly names the skip count and does not/incorrectly describes the pattern in the ones place = 0 points Correct names the skip count = ½ point Correctly describes the pattern in the ones place = ½ point Full correct response = 1 point Do not withhold points for poor handwriting, spelling, grammar, or punctuation. Students may be asked to read aloud an illegible response, or students may dictate their response.
2.NBT.2
2.NBT.2
19.
20. 748, 750, 752, 754, 756, 758
Five or fewer correct responses = 0 points All six correct responses = 1 point
2.NBT.2
200
300
400
500
Incorrect response = 0 points Correct response = 1 point
2.NBT.2
Copyright © Swun Math Grade 2 Unit 2 Assessment (Answer Key) Page 3
600
