Math practice · Week 18 · Friday
Get ready: I can review adding, subtracting, odd and even, and arrays.
Mixed review. Solve.
- 8 + 7 = ____Answer: 15
- 13 − 6 = ____Answer: 7
- 52 − 19 = ____Answer: 33
- Is 24 odd or even? Prove it with a doubles fact.Answer: Even. 12 + 12 = 24.
- Jin had 45 shells. He gave away 18. How many shells are left?Answer: 27 shells (45 − 18 = 27)
Show it as an array.
- Draw 20 dots as an array. Write the repeated addition.Answer: Answers vary. Look for: 4 rows of 5 (5 + 5 + 5 + 5 = 20) or 5 rows of 4 (4 + 4 + 4 + 4 + 4 = 20).
Second Grade · Week 18 · Friday · secondgrade.com