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Inverse operations
Inverse operations are operations that undo each other, such as addition and
subtraction or multiplication and division.
Check the Solve the problem using Check the
condition. inverse operations. answer.
( )Addition ↔ Subtraction
Multiplication ↔ Division
-8 3 2
3 =10
+8 3 2
Example 1 Fill in the blanks. 2
⑴ +5 5
⑵ 2 +3 +7
12
⑶ -5 5 4
8
1. 18-Nim 5
Inverse operations are operations that undo each other, such as addition and
subtraction or multiplication and division.
Check the Solve the problem using Check the
condition. inverse operations. answer.
( )Addition ↔ Subtraction
Multiplication ↔ Division
-8 3 2
3 =10
+8 3 2
Example 1 Fill in the blanks. 2
⑴ +5 5
⑵ 2 +3 +7
12
⑶ -5 5 4
8
1. 18-Nim 5
