脱式计算,能简算的要简算.(1)(125+8)×8 (2)25×13×4 (3)18.8-4.125-5.875 (4) 3
脱式计算,能简算的要简算.(1)(125+8)×8(2)25×13×4(3)18.8-4.125-5.875(4)35×1110+25÷1011(5)[1-(12-14)...
脱式计算,能简算的要简算.(1)(125+8)×8 (2)25×13×4 (3)18.8-4.125-5.875 (4) 3 5 × 11 10 + 2 5 ÷ 10 11 (5) [1-( 1 2 - 1 4 )]× 2 3 (6) 5 8 - 1 4 ×( 8 9 ÷ 4 3 ) .
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美琴87侷歱
2014-08-10
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(1)(125+8)×8, =125×8+8×8, =1000+64, =1064;
(2)25×13×4, =25×4×13, =100×13, =1300; | | (3)18.8-4.125-5.875, =18.8-(4.125+5.875), =18.8-10, =8.8;
(4) × + ÷ , = × + × , =( + )× , = ;
(5) [1-( - )]× , = [1- ]× , = × , = ;
(6) - ×( ÷ ) , = - × ( × ) , = - × , = - , = - , = . |
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