100-12:103+188:15+123-12343234323432+123456789987654321=?
= 123444446800000000000000000
(๑→ܫ←)Hanna Maia(❍ᴥ❍ʋ)
100-12:103+188:15+123-12343234323432+123456789987654321=?
= 123444446800000000000000000
(๑→ܫ←)Hanna Maia(❍ᴥ❍ʋ)
a)TÍNH BẰNG CÁCH THUẬN TIỆN
123 x 54 + 27 x 123 - 12 x 123 + 123 x 31
b)TÌM n
121/27 x 54/11 < n < 100/21 : 25/126
tính :
A=4/3-8/15+12/35-..............+188/8835-192/9215+196/9603
123456789987654321+987654322236789=
123456789987654321-98765432112345678
Chọn cách tính thuận tiện nhất: 65 + 35 + 88 + 12 = ..........
A. (65 + 12) + (35 + 88) = 77 + 123 = 200
B. (65 + 88) + (35 + 12) = 153 + 47 = 200
C. (65 + 35) + (88 + 12) = 100 + 100 = 200
D. Tất cả đều đúng
99 + 99 + 99 + 99 +99999 + 123456789987654321 + 999999999999999999999
90 + 90 + 10 + 90 + 123456789987654321 + 000000000000000000000 + 19738463789327 + 8473749374938 = ?
tinh nhanh
4 + 8 + 12 + 16+... + 200
5 + 10 + 15 + 20 + ... +295 + 300
2+ 4 + 6 + 9 + ... + 98 + 100 - [ 1 + 3 + 5 + ... + 97 + 99]
1 - 2 + 3 - 4 + 5 - 6 + ... + 101 - 102 + 103
16 - 18 + 20 - 22 + 24 - 26+ ... + 64 - 66 + 68
[ 123 x345 ] x [ 13 x15 - 12 x15 -15 ]