googoodan.One worksheet. Growing confidence.Math practiceAdd the numbers.
Print worksheets and answer keys · A4 / Letter
Missing Addends: Adding Four Two-Digit Numbers Worksheets gives students focused practice connected to Common Core 2.NBT.B.6. Students add four two-digit numbers and look for friendly pairs that make a multiple of ten. The worksheet opens with a fresh set of problems and includes an answer key generated from those exact numbers.
One addend is hidden in each problem. Students can subtract the known parts from the total or use addition reasoning to find the missing value. Reorder addends to make tens, keep a clear running total, and estimate before calculating exactly. Ask the learner to explain one answer aloud; a short explanation often reveals whether the place-value or fact strategy is understood.
Select New numbers to create another set without changing the skill. Use the Worksheet and Answer key controls to preview either page. The print choices can include the worksheet, the answer key, or both. The same seed is used for both versions, so every problem stays in the same position. Printing is free and works on US Letter and A4 paper.
This page is focused practice for one arithmetic objective rather than a complete assessment of the standard. Start with accuracy, use a drawing or place-value model when needed, and move to a fresh set after the learner can describe the method independently.