Grade 2Math skills checklist

What should a 2nd grader know in math?

The complete grade 2 math skills checklist

Second grade extends number skills to 1000 and develops fluency with addition and subtraction within 100. Students master telling time, counting money, and measuring with standard units. This year builds crucial computational skills.

Place Value

Understand hundreds, tens, and ones

Know that three-digit numbers are made of hundreds, tens, and ones.

Examples: 345 = 3 hundreds + 4 tens + 5 ones, 200 = 2 hundreds

Read and write to 1000

Read and write numbers in standard, word, and expanded form.

Examples: 567 = five hundred sixty-seven, 482 = 400 + 80 + 2

Compare three-digit numbers

Use >, <, = to compare numbers based on place value.

Examples: 345 > 298 (compare hundreds first), 456 < 465

Skip count by 5s, 10s, and 100s

Count fluently using skip counting patterns.

Examples: 5, 10, 15, 20..., 100, 200, 300..., 325, 335, 345...

Addition & Subtraction

Fluently add within 20

Know all addition facts within 20 from memory.

Examples: 8 + 7 = 15 (instantly), 9 + 6 = 15, 7 + 8 = 15

Fluently subtract within 20

Know all subtraction facts within 20 from memory.

Examples: 15 - 8 = 7, 13 - 5 = 8, 17 - 9 = 8

Add within 100

Add two-digit numbers with and without regrouping.

Examples: 34 + 25 = 59, 47 + 36 = 83 (regroup ones)

Subtract within 100

Subtract two-digit numbers with and without regrouping.

Examples: 65 - 23 = 42, 72 - 38 = 34 (regroup from tens)

Add up to four two-digit numbers

Add multiple numbers using strategies.

Examples: 25 + 12 + 15 + 8 = 60, Look for pairs that make 10

Telling Time

Tell time to 5 minutes

Read analog clocks to the nearest 5 minutes.

Examples: 3:25 - count by 5s: 5, 10, 15, 20, 25

Use a.m. and p.m.

Distinguish between morning and afternoon times.

Examples: School starts at 8:30 a.m., Dinner is at 6:00 p.m.

Relate time to daily activities

Connect clock times to real-world events.

Examples: Bedtime is at 8:00 p.m., Recess is at 10:15 a.m.

Money

Identify coins and their values

Know penny (1¢), nickel (5¢), dime (10¢), quarter (25¢).

Examples: A dime is worth 10 cents, A quarter is worth 25 cents

Count mixed coins

Find the total value of a group of coins.

Examples: 2 quarters + 1 dime + 3 pennies = 63¢

Use $ and ¢ symbols

Write money amounts correctly.

Examples: $1.25, 47¢, $3.00

Measurement

Measure length in inches and centimeters

Use rulers to measure objects.

Examples: The pencil is 7 inches long, Start at 0 on the ruler

Estimate lengths

Make reasonable guesses about object lengths.

Examples: A door is about 7 feet tall, A crayon is about 3 inches

Compare lengths and find differences

Determine how much longer one object is than another.

Examples: The red ribbon is 12 inches. The blue is 8 inches. Difference: 4 inches.

Geometry

Recognize and draw shapes

Identify shapes by their attributes (sides, angles).

Examples: A triangle has 3 sides, A rectangle has 4 sides and 4 right angles

Partition shapes into equal parts

Divide shapes into halves, thirds, and fourths.

Examples: Cut a rectangle into 4 equal parts, Each part is a fourth

Where grade 2 students often struggle

  • Regrouping (borrowing) in subtraction - knowing when to borrow
  • Reading clock times past 30 (saying 7:45 instead of 8:15)
  • Counting mixed coins - forgetting to start with largest value
  • Confusing hundreds and tens when writing numbers
  • Adding columns without aligning place values

Signs your child is on track

  • Recalls addition and subtraction facts within 20 automatically
  • Regroups confidently in addition and subtraction
  • Reads analog clocks quickly to 5-minute intervals
  • Counts mixed coins accurately by starting with the largest
  • Uses place value language correctly (hundreds, tens, ones)

Coming in grade 3

Mastering these grade 2 skills prepares your child for:

Multiplication and division facts
Fractions (halves, thirds, fourths)
Area and perimeter
Telling time to the minute
Multi-digit addition and subtraction
Rounding numbers

Not sure where your child stands?

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