怎样简便就怎样算．4.3+0.98+0.7= 5.27﹣3.9﹣0.1= 8.44﹣（5.44+2.8）= 4.9+0.1﹣4.9+0.1=
直接写出得数． 180÷60= 2﹣= 1.75+=+= 0÷= 10×10%= 2.5×=÷=﹣0.4= 1.8×=
直接写得数． 1÷= 0.32÷0.8= 2.3+3.57= 7.3﹣2.8=÷=+= 1÷×= 2×+5=+4﹣+4=×99+=
口算． 1÷0.5= 1﹣1÷1= 1.25××8=×5.6=÷5××5= 4×0×4= 120×（+）=+0.29+= 3﹣﹣=（﹣）×20=
直接写结果． 9×= 3﹣÷0.75=+1= 2÷= 0.9+99×0.9=×8÷×8= 1﹣﹣=﹣=××= 42÷[14﹣（50﹣39）]=
直接写出得数． 24.06+0.4= 180×40= 7﹣3.635= 50%÷2%=+=×12=÷= 3﹣=
= 1.75+
=
+
=
= 10×10%= 2.5×
=
÷
=
﹣0.4= 1.8×
=
= 0.32÷0.8= 2.3+3.57= 7.3﹣2.8=
÷
=
+
= 1÷
×
+5=
+4﹣
×99+
÷0.5= 1
﹣1
÷1
×8=
×5.6=
÷5×
+
）=
+0.29+
=
﹣
﹣
=（
﹣
）×20=
= 3﹣
÷0.75=
+1= 2÷
=
×8÷
﹣
=
﹣
=
×
×
= 42÷[14﹣（50﹣39）]=
+
=
×12=
÷
= 3﹣
=
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