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087-B6-2

3. Correct the errors in the process of evaluating each expression.

4 {(25 7) 3 9}
4 (18 3 9)
4 (6 9)
24 9
33

4. Connect the expressions that have the same result.

27 {42 (6 15) 17} 8 102 {(27 13) 4 27}

{(26 8) 9 5} 18 16 {8 (32 23) 148} 2

{(9 8) 5 9} 4 865 {(54 18) 10}