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题型:填空题 题类:常考题 难易度:困难
整十数加、减整十数1049(11题)
12+30=42
30+20={#blank#}1{#/blank#}
20+50={#blank#}2{#/blank#}
60+20={#blank#}3{#/blank#}
40+50={#blank#}4{#/blank#}
A套餐:18元 B套餐:23元 C套餐:20元
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 =
114+7 15-79+2 80-2090-20
12-64+6 5056-6 76-667-7
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