X - 70 = 100 + 50
30 + 40 +50 +70 +100 x 0
30 + 70 + 20 + 80 + 100 + 50 + 50 + 40 + 60 =?
30 + 70 + 20 + 80 + 100 + 50 + 50 + 40 + 60
= 100 + 100 + 100 + 100 + 100
= 100 x 5
= 500
đ/s : 500
30 + 70 + 20 + 80 + 100 + 50 + 50 + 40 + 60
= (30 + 70) + (20 + 80) + (50 + 50) + (40 + 60) + 100
= 100 + 100 + 100 + 100 +100
= 100 . 5
= 500
ai k mk mk k lại
Ok!
10 +60 + 80 + 90 + 100 + 50 + 50 + 90 + 80 + 70 + 60
10 + 60 + 80 + 90 + 100 + 50 + 50 + 90 + 80 + 70 + 60
= (10 + 90) + (80 + 80) + (50 + 50) + 70 + 60 + 100
= 100 + 160 + 100 + 70 + 60 + 100
= 590
10 +60 + 80 + 90 + 100 + 50 + 50 + 90 + 80 + 70 + 60
10 + 60 + 80 + 90 + 100 + 50 + 50 + 90 + 80 + 70 + 60
= (10 + 90) + (80 + 80) + (50 + 50) + 70 + 60 + 100
= 100 + 160+100 + 70 + 60 + 100
= 590
70 - 20 + 50 - 100 + 1000 - 500 = ???
70 - 20 + 50 - 100 + 1000 - 500 = 500
thích cho tôi nha
70 - 20 = 50 - 100 = - 50 + 1000 = 950 - 500 = 450
tính nhanh
50 + 60 + 80 + 70 + 90 + 10 + 100 + 20 + 30 + 50
50 + 60 + 80 + 70 + 90 + 10 + 100 + 20 + 30 + 50
= (50 + 50) + (80 + 20) + (70 + 30) + (10 + 90) + 100 + 60
= 100 + 100 + 100 + 100 + 100 + 60
= 560
(50+50)+(80+20)+(70+30)+(90+10)+(100+60)
=100+100+100+100+160
=560
50 + 60 + 80 + 70 + 90 + 10 + 100 + 20 + 30 + 50
= (50 + 50) + (80 + 20) + (70 + 30) + (90 + 10) + 100 + 60
= 100 + 100 + 100 + 100 + 100 + 60
= 500 + 60
= 560
k cho mk nha pạn
cảm ơn trước
Tìm x thộc số tự nhiên:
x mũ 100= x mũ 96
x mũ 70 = x mũ 50
Ai làm nhanh sau 3 phút tặng like luôn nhá!
Tính bằng cách thuận tiện (theo mẫu)?
Mẫu: 30 + 89 + 70 = 30 + 70 + 89 = 100 + 89 = 189 |
a) 30 + 192 + 70 b) 50 + 794 + 50
c) 75+ 219 + 25 d) 725 + 199 + 125
a) 30 + 192 + 70 = 30 + 70 + 192
= 100 + 192 = 292
b) 50 + 794 + 50 = 50 + 50 + 794
= 100 + 794 = 894
c) 75 + 219 + 25 = 75 + 25 + 219
= 100 + 219 = 319
d) 725 + 199 + 125 = 725 + 125 + 199
= 850 + 199 = 1 049
10+20+30+40+50+60+70+80+90+100=???????????????????????????????????????????
10 + 20 + 30 + 40 + 50 + 60 + 70 + 80 + 90 + 100 = 550
Chúc bạn học tốt nhé !
10+20+30+40+50+60+70+80+90+100=(10+90)+(20+80)+(30+70)+(40+60)+50+100=100+100+100+100+50+100=(100+100+100+100+100)+50=500+50=550
10+20+30+40+50+60+70+80+90+100=
=10+90+20+80+30+70+40+60+50+100
=100+100+100+100+50+100
=550
10 + 20 + 30 + 40 + 50 + 60+ 70 + 80 + 90 + 100 = 550