Add and Subtract Decimals
In this mixed addition and subtraction instructional activity, students add and subtract three-digit decimal numbers. Students solve fifteen online interactive problems.
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Actions with Fractions: Adding and Subtracting Fractions with Common Denominators
Fourth graders develop a conceptual understanding of fractions and begin to add and subtract fractions with like denominators. Included is a worksheet to assess readiness and a teacher's checklist showing class understanding at a...
3rd - 5th Math CCSS: Adaptable