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1讲教师版
6.07−1.69=4.388.2+1.8=10100−35.22=64.7812.6−0.9=11.72.5×0.4=12.4×5=120.22×4=0.88
0.9−0.52=0.383.99×1=3.990×3.52=02.5÷5=0.5
8.4÷7=1.2
48+1.6=49.61.1×40=44
2.2×6=13.2
138−8.9=129.1
0.35÷0.1=3.5
75.35−23.04=52.314.007−0.09=3.917
8.2+8.1=16.3
1讲学生版6.07−1.69=
100−35.22=2.5×0.4=2.4×5=0.22×4=0.9−0.52=3.99×1=0×3.52=2.5÷5=8.4÷7=
8.2+1.8=
12.6−0.9=
48+1.6=
1.1×40=
2.2×6=
138−8.9=
0.35÷0.1=
75.35−23.04=
4.007−0.09=
8.2+8.1=
2讲教师版
2.6×3=7.84.1×2=8.2