1.列竖式计算下面各题:-|||-.86times 7-|||-.3times 16-|||-.8times 42-|||-.19times 40-|||-2.先填出课本的单价。再计算总价。-|||-课本 单价/元 5本 12本 23本-|||-语文-|||-数学-|||-科学-|||-美术-|||-音乐 i-|||-3.估计自己家到学校的路程,再计算每天从家到学校往返要走多少千米:一-|||-周(按5天)要走多少千米?-|||-我家到学校大约1.3 km-|||-每天往返两次-|||-每天走: https:/img.zuoyebang.cc/zyb_7794db17b051bc49e8661bcaddb7326b.jpg.3times 4= __ (km).-|||-一周走: times 5= __ (km)-|||-4.根据第一列的积。写出其他各列的积。-|||-因数 32 320 32 32 32 32 0.32-|||-因数 15 15 150 15 15 0.15 15-|||-积 480-|||-5.要下雨了,小莉看见远处有闪电。-|||-4秒后听到了雷声,闪电的地方离-|||-小莉有多远?(雷声在空气中的传-|||-插速度是0.34千米/秒。)-|||-,

1.用简便算法计算下面各题。(2)/(9) - (7)/(16) times (2)/(9)(2)/(5) times 4 times (3)/(4)(5)/(

1.计算:-|||-(1) times ((dfrac {1)(2)-dfrac (1)(3))}^2;-|||-(2) .7div (-dfrac (8)(1

9-17 如题图 9-17 所示,已知 =8times (10)^-2m,-|||-=6times (10)^-2m, _(1)=3times (10)^-8C

一、反复比较,慎重选择-|||-1.若 =2times 3times 3times 5 ,=2times 3times 5times 7 ,那么A、B的最小公倍

times 0.125times 8times 8times ... times 8 ×···×8-|||-2023个0.125 2024个8

8.计算:-|||-(1) times (-5)-(-3)div dfrac (3)(128)-|||-(2) -7times (-3)times (-0.5)

计算下面各题。-|||-div dfrac (11)(8)=-|||-dfrac (2)(5)times dfrac (1)(2)=-|||-dfrac (3)

[题目]-|||-计算:-|||-dfrac (1)(1times 2)+dfrac (2)(2times 4)+dfrac (3)(4times 7)+dfr

-27div 3=-|||-+63div 7=-|||-div 5+87=-|||-times 5-40=-|||-+7times 6=-|||--3times

计算：(1)(-0.02)times (-20)times (-5)times 4.5；(2)(-6.5)times (-2)div (-dfrac(1)(3)