小数加减法的口算

1.5+6.8= 2.6-1.3= 45.6-2.6= 29.8+3.2= 56.3-22.5= 48.2-5.69= 23.6+6.6= 5.5+2.3= 23.6+9.5= 5.3+10.2= 21-2.3= 23.2-21.6= 12.3+56.2=
21.9+14= 6.14+3.83= 7.93-1.64= 5.23-2.36= 3.44+3.36=
7.74-5.85= 9.35-4.74= 38.63-3.48= 1.16+4.77=
8.17-5.26= 2.26-0.86= 4.93+4.75= 76.55+4.68=
31.1+4.5= 31.9+3.4= 3.45+4.6= 4.45+54.5=
3.83+5.55= 2.75+1.3= 39.4-2.75= 67.3-1.26=
61.9+6.2= 67.1-6.6= 46.8-2.8= 47.6-2.15=
44.4+1.4= 1.7+9.66= 43.3+6.3= 64.4+8.67=
55.5-1.9= 38.9-5.55=

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