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题型:填空题 题类:常考题 难易度:普通
一年级 20以内的退位减法751
12+3 = 4 +15= 17 – 3 = 8 +2 = 14+3 =
19 – 5 = 13+ 5 = 2+12 = 19 – 7 = 20 – 10 =
14-4= 10+2= 3+7= 2+3+4=
14+4= 15-1= 13-3= 8+2-6=
16-2= 13+2= 6+4= 13-3-5=
7{#blank#}1{#/blank#}7=0 8{#blank#}2{#/blank#}6>13 12{#blank#}3{#/blank#}2=10 10{#blank#}4{#/blank#}3<9
1420 12+618
1810 17-714-3
10+314+5-6
7+3+918-8+7
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