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Main content
Math

1st grade

Explore

Practice

Mission
Continue practicing
Up next: Compare 2-digit numbers 2
24 / 28 exercises complete
Continue practicing
Up next: Compare 2-digit numbers 2
24 / 28 exercises complete
Contents
Place value
Addition and subtraction
Measurement and data
Geometry
Place value
Place value
Up next: Compare 2-digit numbers 2
Numbers to 120
Groups of ten objects
Tens and ones
2-digit place value challenge
Compare 2-digit numbers
Compare 2-digit numbers 2
UP NEXT
Addition and subtraction
Addition and subtraction
Up next: Find missing number (add and subtract within 20)
Relate addition and subtraction
100%
Add within 20
100%
Add 3 numbers
100%
Subtract within 20
100%
Equal sign
Find missing number (add and subtract within 20)
UP NEXT
Addition and subtraction word problems 1
Addition and subtraction word problems 2
Word problems with "more" and "fewer" 1
Word problems with "more" and "fewer" 2
Add 1 or 10
Add 1s or 10s (no regrouping)
Add 2-digit numbers (no regrouping)
Break apart 2-digit addition problems
Regroup when adding 1-digit numbers
Measurement and data
Measurement and data
Up next: Indirect measurement
Order by length
Indirect measurement
UP NEXT
Measure lengths 1
Solve problems with bar graphs 1
Tell time to hour or half hour
Geometry
Geometry
Name shapes 3
Halves and fourths
Explore
Mission