1.4∶0.2= 0.3∶2= 3∶8= 1.2∶2.1= 36∶27= 9∶6= 2
∶2= 0.25∶0.125= 5
56 ∶4= 10∶1
4 = 47 ∶74 = 口算题卡94
4∶8= 4.2∶6= 0.8∶0.25= 36
144
= 31∶93= 0.8∶0.6= 20040 = 25 ∶12 = 8.1∶9= 108 = 2.8∶3.5=
100∶20= 16 ∶1
9 =
7∶9= 8.1∶0.9= 15∶0.5= 0.75∶1.5= 169
13 = 815 ∶45 = 514 ∶25
=
22
1∶0.125= 1 ∶1 =
331
1∶0.3= 3∶1 =
5421 ∶ = 1∶1 = 934217 = 246 = 16∶12= 4∶0.5=
口算题卡95
19 ∶16 = 23 ∶34 = 58 ∶57 = 58 ∶1
4 = 14 ∶34 = 12 ∶14 = 13 ∶15 = 21
4 ∶9= 3145 ∶5 = 0.25∶14 =
116 ∶3 = 57 ∶27 = 14 ∶18
= 0.3∶1.2= 0.25∶4= 36∶9 1.6∶0.4= 10%∶50%= 2550 = 1575 = 1233
=
4551 ∶ = 0.1∶0.8= = 761711
∶ = 2.8∶0.7= 3∶5= 51011
∶ = 42∶21= 3647 ∶4
7 = 74
30 ∶15 = 16 ∶1
2 = 口算题卡96
45∶25= 15∶21= 27∶72= 1.2∶36= 3.4∶0.34= 100∶150= 4∶48= 7∶3.5= 2.1∶1.2= 63∶9= 1275 =
12
22 =
0.5∶1
3 =
1
2 ∶8=
33
4 ∶5 =
1.8∶23
5 =
34 ∶4
5
=
1
6.5∶13= 3 ∶7=
26∶10= 0.4∶0.5= 5
0.3∶0.4= ∶4=
665∶13= 24∶144= 0.5∶2.5= 72∶48= 124∶20= 3∶0.75= 25
50 = 1575 = 284 =
口算题卡97
6∶3= 3∶8= 80∶2= 24∶10= 10∶1
4 =
3∶2
3 =
815 ∶4
5 =
8∶10= 12∶32= 14∶8= 1.5∶3=
11
72∶18= ∶ =
2311
0.75∶0.25= ∶ =
4882
16∶12= ∶ =
2799∶10= 42∶3= 24∶3= 6∶8= 6∶10= 5.6∶2.8= 10∶12= 1.6∶2= 0.5∶0.2= 0.3∶2= 4.2∶7=
口算题卡98
2.4∶3= 36∶9= 12 ∶1
6 =
314 ∶1
7 =
815 ∶4
5 =
45 ∶3
5 =
23
5 ∶5 =
7.2∶0.9= 0.81∶0.3=