小数加减法:
１.8+3.9=
3.7+8.4=
5.6+1.4=
2.9+4.5=
2.8+4.7=
脱式计算:
4.6+2.7-3.1
=
=
31.7+2.3+4.9
=
=
28.1-3.9+1.6
=
=
36.6-2.4-1.9
=
=
3.4+1.6+2.9
=
=
简便计算:
(9.6+10.4)+1.1
=
=
10+9.6+10+0.4
=
=
9.4+10.6-10
=
=
1.4+1.4+2.2
=
=
56.8+43.2-10
=
=
小数加减法:
1.8+3.9=
3.7+8.4=
5.6+1.4=
2.9+4.5=
2.8+4.7=
脱式计算:
4.6+2.7-3.1
=
=
31.7+2.3+4.9
=
=
28.1-3.9+1.6
=
=
36.6-2.4-1.9
=
=
3.4+1.6+2.9
=
=
简便计算:
(9.6+10.4)+1.1
=
=
10+9.6+10+0.4
=
=
9.4+10.6-10
=
=
1.4+1.4+2.2
=
=
56.8+43.2-10
=
=
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