6·计算下列各题 (1)(-3)-(-15)(-3); (3)22×(-5)-(-3)(-5 (1)-8 (3)-125 (2)(-42)÷(-7)-(-6)×4 (4)(1+3)+(3-1)×Q; (2)30 4) 4
6.计算下列各题: (1)(-3)-(-15)÷(-3); (2)(-42)÷(-7)-(-6)×4; (3)22×(-5)-(-3)÷(- 1 5 ); (4)(1+ 1 3 )÷(1 3-1)× 3 8; (1)-8 (2)30 (3)-125 (4)- 3 4
(5)-10+8÷(-2)2-(-4)×(-3); (5)-20 6) [2-(-3)]; (6 (7)(9)2-5×(-3×2)2+-2)×10 (7)-19
(5)-10+8÷(-2)2-(-4)×(-3); (6)-1 4- 1 6×[2-(-3)2 ]; (7)(-9)2-5×(-3×2)2+|(-2)3 |×10. (5)-20 (6)1 6 (7)-19