Question

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Answer 1

1. 4×[27+11×(804-29×13)]-32×18=

4×[27+11×(864-377)]-576=

4×[27+11×427)]-576

4×[27+4697]-576=18896-576=18320

2. [(79×8-261)×5+3×(473-11×42)]×10-9×21[(632-261)+5+3×(473-462)×10-189=

[371×5+3×11]×10-189=

[1855+33]×10-189=1888×10-189=

18880-189=18691

3. 1930

4. 4644

5. 465