Split and Subtract
About This Worksheet
Split and Subtract is a second grade place-value activity that helps students break the second number into tens and ones before subtracting. Each problem shows the subtrahend rewritten in expanded form so children can work through the subtraction one part at a time. For example, 54 − 28 becomes 54 − 20 and then subtract 8 from the result. This helps students see that a two-digit number can be decomposed into smaller, easier parts. The method supports flexible thinking and makes regrouping less intimidating.
Curriculum and Grade Alignment
This worksheet is made for second grade learners who are practicing subtraction with regrouping through decomposition. The main goal is to help students use expanded form to separate the tens and ones of the number being subtracted. Before using this page, your child should understand that 28 can be written as 20 + 8 and similar two-digit decompositions. The next step is using the strategy with less written support or applying it mentally. This activity supports place value, decomposition, regrouping, and subtraction fluency.
Student Tasks
Students will complete eight two-digit subtraction problems. The worksheet first breaks apart each second number into tens and ones, such as 28 = 20 + 8 or 37 = 30 + 7. Students subtract the tens part, then subtract the ones part, and record the final answer. Problems include 54 − 28, 63 − 37, 72 − 46, 81 − 55, 94 − 48, 75 − 39, 62 − 27, and 83 − 56. This builds place-value reasoning and multi-step subtraction skills.
Common Challenges and Misconceptions
Some students may break apart the second number incorrectly, such as writing 28 as 2 + 8. Others may subtract the tens correctly but forget to continue with the ones. A child may also use the original minuend again during the second step instead of the intermediate answer. Encourage your child to draw a small arrow from the first result to the next subtraction step. This helps keep the sequence connected.
Implementation Guidance
Teachers can use this worksheet after students understand tens and ones decomposition. It works well in small groups because students can explain how the second number was split before solving. Parents can ask the child to rewrite the subtrahend in expanded form aloud before beginning the calculation. If needed, use a number bond to show the tens and ones parts. This reinforces the structure behind the subtraction.
Details and Features
This worksheet includes eight blue-bordered problems in a two-column layout. Each problem shows the decomposition of the second number and provides spaces for both subtraction steps and the final answer. The clear structure makes the strategy easy to repeat. The printable supports expanded form, decomposition, subtraction with regrouping, and mental computation.