(津南区)直接写出得数 786﹣198= ,10﹣8.9= ,21×= ,(+)×8=;+0.375= ;7÷1.4=; ÷÷=; +÷=
19175÷59+678 36.5×1.4-8.51
()÷20-[(
14.8×6.3-6.3×6.5+8.3×3.718.1+(3-0.299÷0.23)×1
5.09-(0.09+1.23) 9.36-(4.36-3.5)
7.5-2.45+7.5+2.45(-)×21+