Who was ____ (one) in the race?
用简便方法计算．
①146+451+54=
②932﹣27﹣73=
③767+299=
④482﹣203=
36÷4=____ 0×7=____ 0÷25=____ 84÷6=____
0×930=____ 0÷495=____ 96÷8=____ 0×0=____
0÷84=____ 180÷6=____ 147÷7=____ 560÷8=____
