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= 0.7＋0.9= 0.8＋0.6=
8.24＋3.76= 4.1－3.8= 0.78＋2.2= 14＋0.78=
14.6－0.34= 1.3＋8.56= 0.8－0.55= 4－0.04=
1－0.03= 30.5＋3.05= 0.8－0.45= 5－0.08=
3.25＋0.75= 8.65－6.31= 10－7.64= 13.6＋8.46=
0.99＋1.1= 10－0.1= 1 .5－0.5＝ 1－0.9＝ 2.3＋0.6＝
0.9＋0.8＝ 1.9－0.9= 3.5 2.4= 0.36＋0.64＝ 0.96－0.3＝
7.5－3.18= 0.51－0.37= 4－0.82= 5.26－4.75= 13－3.9=
8.04－7.4= 0.68＋0.06= 5.2＋0.48= 1－0.73= 3.6＋4.8=
0.78－0.28= 20.9－9.7= 10－0.09= 3.8＋0.12= 0.01＋0.1=
4.9＋5.1= 4.7－0.47= 8.7－7.8= 26.7＋147.2=
801.6－21.9= 100－19.2= 15.78＋2.45= 33.4－9.48=
口算
2.1+0.2= 0.3+0.7= 3.6+1.6= 7.5-0.5=
3.7-0.9= 2.1-0.2= 3.5+0.2= 1.2+0.3=
1.9-1.1= 4.5-2.3= 1.2+4.5= 13.5-0.6=
7.3+3.2= 5.6-3.9= 1.9+6.2= 4.5-2.1=
1.5-0.5= 1-0.9= 2.3+0.6= 0.9+0.8=
1.9-0.9= 3.5-2.4= 0.6+0.4= 7.9-0.3=
4.1+0.8= 2.3+0.7= 3.4+1.2= 7.2-3.5=
3.7-2.9= 2.3-1.2= 6.5+1.2= 2.2+5.3=
2.3-1.7= 1.5+4.3= 1.1+4.7= 3.5-0.6=
7.4+1.2= 5.2-3.9= 8.9-6.2= 10.5-9.1=
1.7-0.5= 1.4-0.9= 2.3+0.8= 4.9+0.8=
1.3-0.9= 7.5-2.4= 2.6+0.4= 3.9-0.8=
7.9+8.2= 5.2+5.5= 6.9+6.4= 5.4+6.7=
3.4+8.6= 5.9+4.3= 8.3+2.8= 2.8+8.9=
9.8-4.8= 6.8-4.4= 7.2-3.7= 8.4-6.6=
4.8-3.3= 5.8-4.8= 7.7-4.9= 6.1+2.6=
4.8-3.8= 8.7-5.3= 6.3+1.6= 8.7-5.5=
2.7+6.4= 1.7+7.3= 6.7-2.2= 5.7-3.9=
9.6-8.8= 5.6-2.7= 3.6+5.6= 7.6-3.7=
9.0-5.9= 4.9+0.5= 3.9+2.4= 4.9-1.3=
5.5+2.8= 8.6-3.7= 9.5-4.6= 3.5+5.1=
2.5+6.4= 7.5-2.7= 4.5+2.2= 3.5+1.9=
7.4-4.8= 5.4+5.5= 9.4-4.4= 4.4-2.3=
1.4+2.2= 2.3+4.9= 6.2+3.3= 3.9-2.4=
4.3+2.8= 7.3-5.7= 2.3-1.4= 3.3+2.2=