1st Grade Number Sense Worksheets and Activities | Page 4

Worksheet instructions: Find the missing number in each problem.

Worksheet instructions: Find the sum for each problem.

Worksheet instructions: Find the sum for each problem.

Worksheet instructions: Add or subtract to find the missing number for each problem.

Worksheet instructions: Round each of the following 3-digit numbers to the nearest 10 or 100, depending on the underlined digit.

Worksheet instructions: Round each of the 3-digit numbers to the nearest 100.

Worksheet instructions: Round each of the 3-digit numbers to the nearest 10.

Worksheet instructions: Round each of the 2-digit numbers to the nearest ten.

Worksheet instructions: Compare the numbers by adding: > or < or =

Worksheet instructions: Compare the numbers by adding: > or < or =

Worksheet instructions: Determine the value of the underlined digit (hundreds, tens or ones)

Worksheet instructions: Count by 20 from 20 to 1,000, and fill in the missing numbers.

Worksheet instructions: Color the picture using the color code. Then, count the number of shapes and write it under the correct shape.

Worksheet instructions: Color the picture using the color code. Then, count the number of shapes and write it under the correct shape.

Worksheet instructions: If the ladybugs have an even number of spots, color them red. If the ladybugs have an odd number of spots, color them green. Then, write the number of spots they have.

Worksheet instructions: Count the beetles. Then, circle each pair and tell whether there is an even or odd number of beetles.

Worksheet instructions: Count the leaves. Then, circle each pair and tell whether there is an even or odd number of leaves.

Worksheet instructions: Count the balls. Then, circle each pair and tell whether there is an even or odd number of balls.

Worksheet instructions: Count the bees. Then, circle each pair and tell whether there is an even or odd number of bees.

Worksheet instructions: Count by 2’s from 2 to 100, and fill in the missing numbers below.

Worksheet instructions: Write the numbers from smallest to largest.

Worksheet instructions: Write the numbers from smallest to largest.

Worksheet instructions: Circle the correct number for each word.

Worksheet instructions: Say each number out loud, then draw a line to the correct word.

Worksheet instructions: Color the picture using the number key below. You can color the background in any color you choose.