Standards with the same topic and subject but for other grades
One more than, one less than, two more than, two less than.
visualize the action in the story problem and draw a picture to show their thinking; and
create their own story problems;
model the problem using manipulatives, representations, or number sentences/equations.
The problem types most appropriate for students at this level include: Common Addition and Subtraction Problem Types - Join (Result Unknown): Sue had 4 pennies. Josh gave her 2 more. How many pennies does Sue have altogether?; Separate (Result Unknown): Sue had 8 pennies. She gave 5 pennies to Josh. How many pennies does Sue have now?; Part-Part-Whole (Whole Unknown): Josh has 4 red balloons and 3 blue balloons. How many balloons does he have?; Part-Part-Whole (Both Parts Unknown): Josh has 5 balloons. Some of them are red and some of them are blue. How many balloons can be blue and how many can be red?
Identify a number sentence to solve an oral or written story and picture problem, selecting from among addition and/or subtraction equations (e.g., number sentences).
Instant recognition of the amount in a set of objects (subitize) that are arranged in a familiar pattern such as the dots on number cubes; and
Students at this level are not expected to use the parentheses or to name the properties.
Subtraction is the inverse of addition. Subtraction can be viewed as a process of taking away or separating, or as a process of comparing two sets to determine the difference between them.
An algorithm is a step-by-step method for computing.