计算 (1) - 1 4 + 16 ÷ ( - 2 ) 3 × | - 3 - 1 |
(2) 2 1 2 - ( 7 9 - 11 12 + 1 6 ) × 36 .
-2+5
计算: (1). (2)5.6+(-0.9)+4.4+(-8.1) (3) (4). (5) (6)
(本题6分)+()-1-sin45°+|-2013|
(本题6分)计算:
计算下式的值:211×555+445×789+555×789+211×445.