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1 直接写出得数。(每题1分,共20分)
$234 + 678 = $ $582 - 45 = $ $123×4 = $ $468×30 = $
$336÷6 = $ $39 + 58 = $ $543 - 123 = $ $763 + 23 = $
$456×5 = $ $840÷7 = $ $579×40 = $ $81 - 44 = $
$60 - 60÷60 = $ $5400÷90÷5 = $ $0÷2023 = $ $95÷19×6 = $
$400÷(24 + 56) = $ $84÷21 + 96 = $ $100×23 = $ $6500÷130 = $
$234 + 678 = $ $582 - 45 = $ $123×4 = $ $468×30 = $
$336÷6 = $ $39 + 58 = $ $543 - 123 = $ $763 + 23 = $
$456×5 = $ $840÷7 = $ $579×40 = $ $81 - 44 = $
$60 - 60÷60 = $ $5400÷90÷5 = $ $0÷2023 = $ $95÷19×6 = $
$400÷(24 + 56) = $ $84÷21 + 96 = $ $100×23 = $ $6500÷130 = $
答案
912 537 492 14040
56 97 420 786
2280 120 23160 37
59 12 0 30
5 100 2300 50
56 97 420 786
2280 120 23160 37
59 12 0 30
5 100 2300 50
2 列竖式计算,带※的要验算。(每题3分,共12分)
$285×24 = $ $308×19 = $ $765÷17 = $ ※$946÷46 = $
$285×24 = $ $308×19 = $ $765÷17 = $ ※$946÷46 = $
答案
竖式及验算略
6840 5852 45 20……26
6840 5852 45 20……26
3 计算下面各题,能简算的要简算。(每题3分,共18分)
$42×116 - 16×42$ $35×75 + 65×75$ $125×(80 - 8)$
$39×8 + 6×39 - 39×4$ $2400÷25÷8$ $38×54 + 47×38 - 38$
$42×116 - 16×42$ $35×75 + 65×75$ $125×(80 - 8)$
$39×8 + 6×39 - 39×4$ $2400÷25÷8$ $38×54 + 47×38 - 38$
答案
4200 7500 9000
390 12 3800
390 12 3800
