直接写出得数．32+68= 910﹣440= 18×10= 910÷70=12﹣= 10×10%= 2÷= 4.5×102=8.1÷0.03= ÷=
1+3= ．
= ．
口算 55+37= 80﹣26= 1400﹣800= 2+210= 9+300= 82+0= 1﹣= += ﹣= ．
口算我最棒.+=+=﹣=﹣=+= 1+=﹣0.2=+0.3=+= 1﹣+=﹣﹣=++=
==== 0.32===== 2x+x=
= 10×10%= 2÷
= 4.5×102=
÷
=
+3= ．
= ．
= 
+
= 
﹣
= ．
+
=
+
=
﹣
﹣
=
+
= 1+
=
﹣0.2=
+0.3=
+
= 1﹣
+
=
﹣
﹣
=
+
+
=
=
=
=
=
=
=
=
= 2x+x=
粤公网安备 44130202000953号