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题型：解决问题 题类：常考题 难易度：容易
两位数减整十数（不退位）997（10题）
90＋{#blank#}1{#/blank#}=100
80＋{#blank#}2{#/blank#}=100
70＋{#blank#}3{#/blank#}=100
60＋{#blank#}4{#/blank#}=100
50＋{#blank#}5{#/blank#}=100
8000－400{#blank#}1{#/blank#}4000
350＋500{#blank#}2{#/blank#}4000
5050－50{#blank#}3{#/blank#}5000
9500－5000{#blank#}4{#/blank#}9000
3600＋30{#blank#}5{#/blank#}3900
40+9 = 10 +30 = 59 – 7 = 85 – 80 =
60+40 = 26 +10 = 88 – 8 = 50 +26 =
72 + 27 = 38 – 27 = 54 +25 = 73 – 23 =
100 – 30 = 38 – 35 = 60 + 15 = 16 + 40 =
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