3rd Grade: Number and Operations in Base Ten (3.NBT)

Number and Operations in Base Ten (3.NBT)

 


Want Full Access? Join The Many Satisfied MathTA Users!

OR


3.NBT.A.1

Use place value understanding to round whole numbers to the nearest 10 or 100.
RoundingTen408.png

Round to the nearest 10

Round to the nearest 10

START

Round to the nearest 100

Round to the nearest 100

START

3.NBT.A.2

Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
adding two-digits by one digit b

Add Two-Digit number by One-Digit

Add Two-Digit number by One-Digit

START

Subtract Two-Digit number
by One-Digit

Subtract Two-Digit number
by One-Digit

START
adding two-digits by two-digits b

Add Two-Digit number
by Two-Digits

Add Two-Digit number
by Two-Digits

START

Subtract Two-Digit number
by Two-Digits

Subtract Two-Digit number
by Two-Digits

START

Add Three-Digit number
by One-Digit

Add Three-Digit number
by One-Digit

START
adding three digits by two digits a

Add Three-Digit number
by Two-Digits

Add Three-Digit number
by Two-Digits

START
subtracting by two digits a

Subtract Three-Digit number
by Two-Digits

Subtract Three-Digit number
by Two-Digit number

START

Add Three-Digit number
by Three-Digits

Add Three-Digit number
by Three-Digits

START
subtracting-by-three-digits-1273

Subtract Three-Digit number
by Three-Digits

Subtract Three-Digit number
by Three-Digit number

START

3.NBT.A.3

Multiply one-digit whole numbers by multiples of 10 in the range 10–90 using strategies based on place value and properties of operations. (e.g., 9 × 80, 5 × 60)

Multiply One-Digit by Tens

Multiply One-Digit by Tens

START

See All Math Fundamental Skills