早教吧作业答案频道 -->其他-->
递等式计算,能巧算的要巧算.630÷6+598842-462-23857+43×8708+247+1928×78-8×7067×4÷2.
题目详情
递等式计算,能巧算的要巧算.
630÷6+598
842-462-238
57+43×8
708+247+192
8×78-8×70
67×4÷2.
630÷6+598
842-462-238
57+43×8
708+247+192
8×78-8×70
67×4÷2.
▼优质解答
答案和解析
(1)630÷6+598,
=105+598,
=703;
(2)842-462-238,
=842-(462+238),
=842-700,
=142;
(3)57+43×8,
=57+344,
=401;
(4)708+247+192,
=708+192+247,
=900+247,
=1147;
(5)8×78-8×70,
=(78-70)×8,
=8×8,
=64;
(6)67×4÷2,
=67×(4÷2),
=67×2,
=134.
=105+598,
=703;
(2)842-462-238,
=842-(462+238),
=842-700,
=142;
(3)57+43×8,
=57+344,
=401;
(4)708+247+192,
=708+192+247,
=900+247,
=1147;
(5)8×78-8×70,
=(78-70)×8,
=8×8,
=64;
(6)67×4÷2,
=67×(4÷2),
=67×2,
=134.
看了 递等式计算,能巧算的要巧算....的网友还看了以下:
直接写出得数:0.5+0.4=0.90.9;1.4+2.7=4.14.1;8.2+3.7=11.9 2020-04-07 …
9x-7*5=823x-8.5=30.58x-18=1427+6x=939x-26=6435+7x 2020-04-07 …
六年级分数混合运算35道不要1.3/7×49/9-4/32.8/9×15/36+1/273.12× 2020-04-08 …
3²-1=8=8*1,5²-3²=16=8*2,7²-5²=24=8*3,9²-7²=32=8*4 2020-05-15 …
24点 3、6、7、9 3、5、7、8 4、7、9、6 4、7、8、10 6、7、8、10 6、7 2020-05-16 …
注:/为几分之几1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/ 2020-06-13 …
已知:x=根号8+根号7分之根号8-根号7,y=根号8-根号7分之根号8+根号7,求根号x+根号y 2020-06-13 …
口算24÷4=7+63=9×4=36÷6=56÷8=28+6=7×5=36+4=63÷9=64÷8 2020-07-17 …
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5 2020-07-19 …
跳远运动员李刚对训练效果进行测试,6次跳远的成绩如下:7.6,7.8,7.7,7.8,8.0,7.9 2020-10-30 …