A-A+
脱式计算.(能简算的要简算)0.375×134+58×1.75(14+56+23)×1211
问题详情
0.375×1
参考答案
(1)0.375×134+58×1.75,
=38×134+58×134,
=(38+58)×134,
=1×134,
=134.
(2)(14+56+23)×12,
=14×12+56×12+23×12,
=3+10+8,
=21.
(3)115×12.5×8,
=65×(12.5×8),
=65×100,
=120.
(4)3.14÷5+3.14×45,
=3.14×15+3.14×45,
=3.14×(15+45),
=3.14×1,
=3.14.
(5)720+(914-735)÷234,
=720+(374-385)÷114,
=720+(18520-15220)÷114,
=720+3320×411,
=720+1220,
=1920.
(6)415-1.65-1.35,
=415-(1.65+1.35),
=415-3,
=115.
考点: