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▾1st grade
- ▾Place value
  - •Count and write numbers within 120
  - •Skip count by 3s and 4s
  - •Place value with tens
  - •Compare two-digit numbers
- ▸Addition and subtraction
  - •River crossing puzzles
  - •Add and subtract within 20
  - •Add within 20, word problems involving three addends
  - •Use one addition problem to solve another
  - •Add by making tens
  - •Subtract by adding
  - •Understand the equals sign
  - •Add and subtract within 20, missing number problems
  - •Add and subtract within 20, word problems
  - •Add within 100, concrete and pictorial
  - •10 more or 10 less
  - •Subtract multiples of ten from multiples of ten
- ▸Measurement, data, and geometry
  - •Order without tools
  - •Measure given a unit
  - •Bar and picture graphs having three categories of data
  - •Tell and write time, hour and half-hours
  - •Definitions of shapes
  - •Compose 2D and 3D shapes
  - •Halves and quarters

› 1st grade › Place value

Skip count by 3s and 4s

Students will learn how to skip count by 3s and 4s. 3, 6, 9, ..., 4, 8, 12, ...

Lessons and practice problems