简算题五年级的加答案!急要15道以上,谢谢大家!~~~~~

Question

简算题五年级的加答案!急
要15道以上,谢谢大家!~~~~~

Answer 1

11/14-3/14+1/8
=4.05-(2.8+0.7)
=0.55
4.05-2.8-0.7
=4.05-(2.8+0.7)
=0.55
212+198
=(200+12)+(100+98)
=200+12+100+98
=12+98+100+200
=110+100+200
=410
13.75-(3.75+6.48)
=13.75-3.75-6.48
=10-6.48
=3.52
（0.75*42.7+57.3-0.573*25）/3*7972
=(0.75*42.7+57.3*1-57.3*0.25)/3*7972
=[0.75*42.7+57.3(1-0.25)]/3*7972
=[0.75*42.7+57.3*0.75]/3*7972
=[(42.7+57.3)*0.75]/3*7972
=75/3*7972
=25*7972
=199300
3.45*0.6*2.8=3.45×2.8×0.6=5.796
4.02＋5.4＋0.98
=4.02+0.98+5.4
=5+5.4
=10.4
5.17－1.8－3.2
=5.17-（1.8+3.2）
=5.17-5
=0.17
13.75－(3.75＋6.48)
=13.75-3.75-6.48
=3.52
33*145+33*55
=(145+55)*33
=200*33
=6600
369*136-36*369
=100*369
=36900
193*51+193*49
=100*193
=19300
25*32
=25*4*8
=800
79*16+79*78+79*6
=(16+78+6)*79
=100*79
=7900
25*32
=25*4*8
=800
193*51+193*49
=100*193
=19300
369*136-36*369
=100*369
=36900
33*145+33*55
=(145+55)*33
=200*33
=6600
是要题目加答案吧?/ =除号 *=乘号