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题型:填空题 题类:常考题 难易度:容易
一年级 20以内的退位减法777
13-5=
13-6=
12-4=
17-8=
夺红旗(从下到上,先做左边,后做右边).
13-8{#blank#}1{#/blank#}5 17-10{#blank#}2{#/blank#}8 12-6{#blank#}3{#/blank#}9 12-7{#blank#}4{#/blank#}6
4+8{#blank#}5{#/blank#}11 17-8{#blank#}6{#/blank#}6 5{#blank#}7{#/blank#}14-8 16-7{#blank#}8{#/blank#}7
9+8= 17-4= 3+9= 18-6=
10-8= 0+9= 9+9= 8+5=
3+7= 19-6= 17-2= 5+10=
16-4= 14+3= 8+7= 4+8=
7+9-3= 8+7-10= 9-2+6=
9+8-6= 3+5+4= 14-4+3=
6+( )=8 12-( )=10 9-( )=4
4+( )=9 17-( )=13 9+( )=11
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