
(1)-2 2 -|-3|(2) 1 5 ×(-5)÷(- 1 5 )×5 (3)12-(-18)+(-7)-15(4)(-1
(1)-22-|-3|(2)15×(-5)÷(-15)×5(3)12-(-18)+(-7)-15(4)(-10)+8×(-2)2-(-4)×(-3)(5)(-56+23-...
(1)-2 2 -|-3|(2) 1 5 ×(-5)÷(- 1 5 )×5 (3)12-(-18)+(-7)-15(4)(-10)+8×(-2) 2 -(-4)×(-3)(5)( - 5 6 + 2 3 - 3 4 )÷ 1 12 (6)(-2) 3 -2 2 -(-1) 2004 ÷[( 1 3 - 1 2 )]×6-|5|
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(1)-2 2 -|-3| =-4-3 =-7; (2)
=1×5×5 =5×5 =25; (3)12-(-18)+(-7)-15 =12+18-7-15 =30-22 =8; (4)(-10)+8×(-2) 2 -(-4)×(-3) =-10+8×4-12 =-10+32-12 =10; (5)( -
=( -
=-
=-10+8-9 =-11; (6)(-2) 3 -2 2 -(-1) 2004 ÷[(
=-8-4-1÷
=-8-4-36-5 =-53. |
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