222 + 222 = 444
444 - 44 = 400
555 - 45 = 510
345 - 45 = 300
222 + 222 = 444
444 - 44=400
555 -45 =510
345 - 45 = 300
222 + 222 = 444
444 - 44 = 400
555 - 45 = 510
345 - 45 = 300
Study well ! >_<
222+222=444
444-44=400
555-45=510
345-45=300
222 + 222 = 444
444 - 44 = 400
555 - 45 = 510
345 - 45 = 300
222 + 222 = 444
444 - 44=400
555 -45 =510
345 - 45 = 300
222 + 222 = 444
444 - 44 = 400
555 - 45 = 510
345 - 45 = 300
Study well ! >_<
222+222=444
444-44=400
555-45=510
345-45=300
(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2.................999 x 2 x 2 x 2 ?
A.(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2 > 999 x 2 x 2 x 2 = 9990 > 7992
B.(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2 < 999 x 2 x 2 x 2 = 9990 < 7992
C.(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2 = 999 x 2 x 2 x 2 = 9990 = 7992
(Không báo cáo câu hỏi này!)
111+222+333+444+555=
88+99+111+222+333+444+555
555-222=?
222+444=
222+444=?
222+333+444=?
45 413 – 3 456 x 5 =.......................... 222 x 3 – 16 777 = .........................
= ............................ = ...........................
Tính nhẩm:
a) 810 + 50 = ......
350 + 250 = ......
550 - 500 = ......
b) 600 + 60 = ......
105 + 15 = ......
245 - 45 = ......
c) 200 - 100 = ......
250 - 50 = ......
333 - 222 = ......