1.直接写出得数。(每题1★)
$123+465=$
$430-30=$
$3000+800=$
$210+345=$
$160-80=$
$50+90=$
$321+578=$
$1700-700=$
$1600-800=$
$204+103=$
$400+400=$
$1100-600=$
$413+265=$
$900+700=$
$2600-600=$
$330-300=$
$400+3000=$
$200+400=$
$123+465=$
$430-30=$
$3000+800=$
$210+345=$
$160-80=$
$50+90=$
$321+578=$
$1700-700=$
$1600-800=$
$204+103=$
$400+400=$
$1100-600=$
$413+265=$
$900+700=$
$2600-600=$
$330-300=$
$400+3000=$
$200+400=$
答案
1.588 400 3800 555 80 140
899 1000 800 307 800 500
678 1600 2000 30 3400 600
899 1000 800 307 800 500
678 1600 2000 30 3400 600
2.用竖式计算,带※的要验算。(每题 3 ★)
$489-56=$

$198-64=$
$576-255=$
※$236-102=$
验算:

※$484-53=$
※$687-265=$
$489-56=$
$198-64=$
$576-255=$
※$236-102=$
验算:
※$484-53=$
※$687-265=$
答案
2.433 134 134 431
321 422(竖式及验算略)
321 422(竖式及验算略)
登录