Math Launchpad Pre Assessment
MATH LAUNCHPAD
Unit 1 Pre-Assessment
Name:
Date:
Welcome to your Math Mission!
Show how you solve these addition and subtraction problems. Use the picture clues and workspaces to help you along the way!
1
Addition Rockets (Show your work in the big boxes)
Q1 Solve within 10
Draw circles or show work here
5 + 4 =
Q2 Solve within 10
Draw circles or show work here
6 + 3 =
Q3 Part-Part-Whole
? 7 6
7 + 6 =
Q4 Solve within 20
Draw circles or show work here
8 + 7 =
Unit 1: Add and Subtract Within 20 Page 1 of 2
Part 2: Subtraction & Word Problems
MATH MISSION CONTINUED...
2
Subtraction Countdown (Use the models or workspaces to solve)
Q5 Cross Out to Subtract
✕
✕
✕
✕
and
14 - 4 =
Q6 Find the Part
13 ? 5
13 - 5 =
Q7 Solve with Work Space
Draw circles or show work here
11 - 4 =
Q8 Solve with Work Space
Draw circles or show work here
16 - 9 =
3
Mission Word Problems (Read, use the bar models, and solve)
Q9 Addition Story
Leo has 8 space stickers. Mia gives him 6 more. How many stickers does Leo have in all?
? (Total)
8
6
Show work here
=
Leo has
stickers in all.
Q10 Subtraction Story
Sam has 15 toy rockets. He gives 6 rockets to his friend. How many rockets does Sam have left?
15 (Total)
6
? (Left)
Show work here
-
=
Sam has
rockets left.
Unit 1: Add and Subtract Within 20 Page 2 of 2
Math Launchpad Answer Key
MATH LAUNCHPAD
Teacher Answer Key & Guide
DIAGNOSTIC CRITERIA
Diagnostic Scoring Guide
Use this key to assess second-grade math readiness. Answers are filled in emerald text. Watch for students counting dots one-by-one instead of using "make a ten" grouping.
1
Addition Rockets (Answer Key & Analysis)
Q1 Correct Total: 9
Acceptable Workspace: • Student draws 5 dots and 4 dots • Counts on from 5: "6, 7, 8, 9" • Or writes tallies: ||||| + ||||
5 + 4 =
9
Q2 Correct Total: 9
Acceptable Workspace: • Student draws 6 lines and 3 lines • Counts on from 6: "7, 8, 9" • Or lists numbers: 6, 7, 8, 9
6 + 3 =
9
Q3 Correct Whole: 13
13 7 6
7 + 6 =
13
Q4 Correct Total: 15
Acceptable Workspace: • Student breaks down 7: "8 + 2 = 10, then 10 + 5 = 15" • Draws dots and bundles 10 together • Or writes: "8 + 8 = 16, so 8 + 7 = 15" (double - 1)
8 + 7 =
15
Teacher Diagnostic Key: Page 1 Page 1 of 2
Part 2 Answer Key & Misconception Check
MATH KEY CONTINUED...
2
Subtraction Countdown (Answer Key & Analysis)
Q5 Correct Difference: 10
✕
✕
✕
✕
and
14 - 4 =
10
Q6 Correct Part: 8
13 8 5
13 - 5 =
8
Q7 Correct Difference: 7
Acceptable Workspace: • Counts back: "10, 9, 8, 7" • Writes: "11 - 1 = 10, then 10 - 3 = 7"
11 - 4 =
7
Q8 Correct Difference: 7
Acceptable Workspace: • Uses near doubles subtraction: "16 - 8 = 8, so 16 - 9 = 7" • Draws 16 lines, crosses out 9
16 - 9 =
7
3
Mission Word Problems (Answer Keys & Strategy Notes)
Q9 Addition Model & Answer: 14
Leo has 8 space stickers. Mia gives him 6 more. How many stickers does Leo have in all?
14 (Total)
8
6
Workspace: 8 + 2 = 10; 10 + 4 = 14
8
6
=
14
Leo has
14
stickers in all.
Q10 Subtraction Model & Answer: 9
Sam has 15 toy rockets. He gives 6 rockets to his friend. How many rockets does Sam have left?
15 (Total)
6
9 (Left)
Workspace: 15 - 5 = 10; 10 - 1 = 9
15
-
6
=
9
Sam has
9
rockets left.
Teacher Diagnostic Key: Page 2 Page 2 of 2