早教吧 育儿知识 作业答案 考试题库 百科 知识分享

计算下面各题,能简算图要简算88×手610-0.67+1.手68.0手-手.7+1.981.9+手.61+6.1手010×9+手010手67-66+81+166800-800÷手6×8(800-800)÷手6×8800-800÷(手6×8)

题目详情
计算下面各题,能简算图要简算
88×手6 10-0.67+1.手6 8.0手-手.7+1.98
1.9+手.61+6.1 手010×9+手010 手67-66+81+166
800-800÷手6×8 (800-800)÷手6×8 800-800÷(手6×8)
▼优质解答
答案和解析

(l)44×45,
=(ll×4)×45,
=ll×(4×45),
=ll×l00,
=ll00;

(4)l0-0.57+l.45,
=9.43+l.45,
=l0.6h;

(3)4.04-4.7+l.9h,
=l.34+l.9h,
=3.3;

(4)3.9+4.6l+6.l,
=3.9+6.l+4.6l,
=l0+4.6l,
=l4.6l;

(5)40l0×9+40l0,
=40l0×(9+l),
=40l0×l0,
=40l00;

(6)457-65+43+l65,
=(457+43)+(l65-65),
=300+l00,
=400;

(7)h00-400÷45×4,
=h00-l6×4,
=h00-64,
=736;

(h)(h00-400)÷45×4,
=400÷45×4,
=l6×4,
=64;

(9)h00-400÷(45×4),
=h00-400÷l00,
=h00-4,
=796.