how can related facts help you add and subtract. this is a 1st grade ?

If you want to find 8-0, recall that

8-8 = 0
so, 8-0 = 8

9-3?
9-6=3, so
9-3=6

Just google subtraction related facts, and study up some.

Related facts can be extremely helpful in aiding a first grader with addition and subtraction. Related facts are pairs of mathematical statements that are linked through the same numbers or operations. By understanding related facts, children can use their existing knowledge to solve new problems more efficiently.

For addition, related facts involve the concept of "fact families." Fact families consist of three numbers that are related through addition and subtraction. For example, if you know that 2 + 3 = 5, you can also deduce that 3 + 2 = 5. In this case, the related facts are 2 + 3 = 5, 3 + 2 = 5, 5 - 2 = 3, and 5 - 3 = 2. By understanding these related facts, children can use them to quickly solve addition problems by recalling the corresponding subtraction fact.

Similarly, related facts can be helpful with subtraction as well. For instance, if a child knows that 7 - 4 = 3, they can also deduce that 7 - 3 = 4. In this case, the related facts are 7 - 4 = 3, 7 - 3 = 4, 4 + 3 = 7, and 3 + 4 = 7. By recognizing these related facts, children can employ them to solve subtraction problems by recalling the corresponding addition fact.

To reinforce the understanding of related facts, teachers and parents can use visual aids like fact triangles or number bonds. These tools help to visually represent the relationships between numbers and operations, allowing children to see how addition and subtraction facts are interconnected.

Overall, understanding related facts is valuable for young learners as it enables them to transfer their knowledge across various addition and subtraction problems, making their calculations more efficient and accurate.