Tơ không biet đâu

x-28=54-19

x-28=35

x=35+28

x=63

99+99+1=199

Đáp số 199

99 + 1 +99 = 199 

ok

đáp án: thứ sáu

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tìm chữ I

26+46=72

bằng 70

Số bé nhất có hai chữ số giống nhau là 11, số liền sau nó là 12 nên số hạng thứ nhất là 12

Số hạng thứ hai là :               23 - 12 = 11

câu trả lời:23-12=11

wait to face

99+99=198

99 + 99 = 198

-----chúc bạn học tốt-----

bằng 4

bằng 4

=1 hoặc = 2 hoặc =3

1+1=2

Chúc bạn học tốt