Curated OER
Addition and Subtraction Equations
For math teachers who are leading their charges into the world of algebra, this presentation may be useful. In it, learners are shown the basics of algebraic equations as they relate to addition and subtraction. The last slide challenges...
Curated OER
Roman Numerals
Count to 20 using roman numerals. It's a great way to practice addition and subtraction and to explore alternative number systems. Each of the six slides in this presentation include sound bites, a Roman to Arabic number equivalency, and...
Lessonplans Blog Spot
Butterfly Fun
In this addition and subtraction worksheet, learners solve a set of nine two-digit addition and subtraction problems. Once finished computing, they color spaces with even-numbered answers blue and odd-numbered answers purple, then color...
EdHelper
Simple Subtraction Practice
For this subtraction worksheet, students solve a total of 62 subtraction problems; some problems are vertical, some horizontal, some have missing numbers and 4 are word problems. Worksheet is part of a subscription site with links and is...
EdHelper
Addition: Missing Number Fill In
For this addition instructional activity, students fill in a missing addend to solve 23 problems. Worksheet is part of a subscription site with links and is labeled as a sample.
EdHelper
Subtraction
In this subtraction worksheet, students solve the single digit subtraction equations. Students use subtraction to solve the 28 problems.
EdHelper
Subtraction
In this subtraction worksheet, students use the base ten blocks and square unit blocks to help them find the missing number to complete the single and double digit subtraction problems. Students solve 11 problems.
EdHelper
Subtraction
In this subtraction learning exercise, 1st graders use the number line to help them find the missing number in the single digit subtraction equations. Students solve 25 problems.