直接写出结果.= = = == = = == =
混合运算.(能简算的要简算)198﹣(98+37 ) 34×102 ×40﹣÷80.3﹣33.3×0.5÷0.37 (﹣)×12÷0.1 ×[÷(+)].
计算下面各题.(1)10﹣(+3)(2)7.2÷4÷0.9(3)+8×(﹣)(4)(+)÷×.
计算(1)(2)(3)(4)2222×4444+8888×8889.
下面各题,怎样算简便就怎样算.+(﹣) ﹣++ ﹣(﹣)9.6×0.25×4 8×(1.25+12.5) 29.6÷0.8﹣1.2×5.
用递等式计算.(能简算的要用简便方法计算)﹣×(+) 2835÷27+741 64×+×343+3.52+7+5.48 18÷1.5﹣5×0.3 (﹣)×(+)