Number Writing 0-20 — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. Eli counts 4 red balls and 4 blue balls. How many balls total?
A) 8
B) 9
C) 7
D) 6
Four red plus four blue equals eight balls in total when added.
2. Mia has 11 cubes. She gets 2 more. How many cubes now?
A) 12
B) 13
C) 14
D) 15
Eleven plus two equals thirteen when counting up by two from eleven.
3. Pattern: 1, 3, 5, 7. What is the next number in the pattern?
A) 8
B) 10
C) 9
D) 11
Seven plus two equals nine, continuing the pattern of odd numbers.
4. Jay sees 20 fish and 1 swims away. How many fish remain?
A) 20
B) 21
C) 18
D) 19
Twenty take away one is nineteen because one less than twenty is nineteen.
Part B: Fill in the Blank
Write the correct answer on each line.
1. Pattern: 3, 6, 9, 12.
Nine plus three equals twelve, continuing the count-by-three pattern.
2. Sara has 6 books. She buys 4 more. She has 10 books.
Six plus four makes ten, since six and four together equal ten.
3. There are 15 ants. 5 walk away. There are 10 ants left.
Fifteen minus five equals ten when we take five away from fifteen.
4. Pattern: 10, 12, 14, 16.
Fourteen plus two equals sixteen, continuing the skip-by-two pattern.
5. Ben drew 8 stars then 8 more. He has 16 stars total.
Eight plus eight equals sixteen, a doubles fact within twenty.