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Grade 1 Math · World 5: Hundred Hill · Level 41
Castle 5
Mixed adding and subtracting within 100.
10 questions from this world. Get 8 right to win the castle!
What children learn in Level 41
Georgia's K-12 Mathematics Standards:
- 1.NR.5.1 — Use a variety of strategies to solve applicable, mathematical addition and subtraction problems with one- and two-digit whole numbers.
- 1.NR.5.2 — Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
- 1.NR.5.3 — Add and subtract multiples of 10 within 100.