6 questions
3rd - 3rd Grade
Mathematics
This Grade 3 mathematics worksheet helps students add two- and three-digit numbers by decomposing each addend into hundreds, tens, and ones. Across six multiple-choice questions, students identify expanded place-value expressions, combine like place values, and select the correct total for problems such as 74 + 21, 121 + 67, and 561 + 247. The worksheet is useful for introducing place-value addition, guided practice, independent review, or a quick formative assessment. Its answer choices reveal whether students understand that each digit represents a specific value, rather than simply adding individual digits or mixing place values. This free printable worksheet includes a complete answer key for efficient checking and feedback.
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WorksheetsAnswer Key70 +4 + 20 + 1 = 70 + 20 + 4 + 1 = 95
50 + 20 + 6 + 3 = 79
100 + 20 + 60 + 1 + 7 = 188
500 + 60 + 1 + 200 + 40 + 7 = 808
100 + 100 + 20 + 20 + 3 + 3 = 246
200 + 100 + 30 + 20 + 4 + 1 = 355
This Grade 3 worksheet covers adding two- and three-digit numbers by separating hundreds, tens, and ones into expanded place-value expressions. Its six multiple-choice items ask students to recognize and select representations such as 200 + 100 + 30 + 20 + 4 + 1 = 355, strengthening both place-value reasoning and addition accuracy.
First, model one item by decomposing each addend into hundreds, tens, and ones, then combine values from the same place. For the remaining multiple-choice questions, ask students to explain why an option such as 5 + 6 + 2 + 3 does not preserve the original place values before they select the expanded expression and total.
Watch for students adding the digits instead of their place values, such as treating 56 + 23 as 5 + 6 + 2 + 3. Students may also combine unlike places or omit a digit when expanding three-digit numbers, so check that their selected expression includes every hundreds, tens, and ones value before they evaluate the sum.
On Wayground, you can assign this worksheet as a printable PDF or as a digital quiz, and it includes a complete answer key for all six multiple-choice questions. Printable submissions can be graded by scanning student work with the Wayground for Teachers app, while the digital quiz can be completed online.
Use the worksheet’s Advanced Settings to adjust font spacing or increase the font size so the expanded place-value expressions are easier to read. You can also apply a dyslexia-friendly font or translate the worksheet into another language while students work through the multiple-choice addition items.
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