二、连一连。(8分)
三、计算。(33分)
1.口算。(每题0.5分,共10分)
20+60= 84-50 = 24 +57= 19 +40 =
97-70= 15 + 51 = 8 + 65 = 100-80 =
62 +8 = 60-9 = 30 +70 = 48-23 =
50-30 = 74 +5 = 85-80 = 60 +26 =
72 +9 = 34 + 65 = 95-5 = 4 +42 =
2.用竖式计算。(每题2.5分,共15分)
67 +15 = 55-37 = 73-38 =
93-46 = 25 +68= 82-34 =
3.计算。(每题2分,共8分)
25 +36 +1990-36-4882-19 +36 57 + 28-43
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