(1)369-278=91
答:这个数是91.
(2)2800÷(13-9)
=2800÷4
=700
答:商是700.
(3)7326-358×2
=7326-716
=6610
答:7326比358与2的积多6610.
(4)1326-735+1326
=591+1326
=1917
答:甲乙两数的和是1917.
(5)384+279=663
答:这个数是663.
(1)369-278=91
答:这个数是91.
(2)2800÷(13-9)
=2800÷4
=700
答:商是700.
(3)7326-358×2
=7326-716
=6610
答:7326比358与2的积多6610.
(4)1326-735+1326
=591+1326
=1917
答:甲乙两数的和是1917.
(5)384+279=663
答:这个数是663.