About This Worksheet
This worksheet gives first graders more practice building numbers with groups of tens and ones. Students color the base-ten blocks to match each number, making it easier to see how larger numbers are made from smaller parts. Every completed model helps reinforce that one tens rod is worth ten ones. As children connect written numbers to visual models, they develop a deeper understanding of place value that will support future math learning.
Curriculum and Grade Alignment
This worksheet is intended for Grade 1 students who are learning to represent numbers using place value models. Students should already count by ones and tens before beginning. Understanding tens and ones prepares children for regrouping, mental math, and addition with larger numbers. This activity aligns with CCSS.MATH.CONTENT.1.NBT.B.2 by representing two-digit numbers using tens and ones and supports TEKS 1.2.A through the use of concrete and pictorial place value models.
Student Tasks
Students look at each two-digit number and identify the tens digit and the ones digit. They color the matching number of tens rods blue and the correct number of ones cubes red. Students repeat this process for every problem while checking that each model matches the written number. After finishing, they can describe each number using the words “tens” and “ones.”
Common Challenges and Misconceptions
Some students may forget that a tens rod already represents ten. Others may color too many ones because they count too quickly. A few learners may reverse the digits and build the wrong number. Encourage students to read the tens digit first before counting the ones.
Implementation Guidance
Teachers can pair this worksheet with classroom manipulatives so students build each number before coloring it. It also works well for independent practice, math centers, or small-group instruction. Parents can use bundled pencils, straws, or sticks at home to model the same numbers before children complete the worksheet.
Details and Features
The worksheet includes easy-to-read numbers alongside base-ten block illustrations ready for coloring. Students receive repeated practice with representing different two-digit numbers while strengthening number sense. The printable format is well suited for classroom instruction, tutoring, homework, and homeschool practice.