Gọi số nhân với 1,6 là \(A\)
Theo bài ra, ta có:
\(A.1,9-A.1,6=8,34\)
\(\Rightarrow A.\left(1,9-1,6\right)=8,34\)
\(\Rightarrow A.0,3=8,34\)
\(\Rightarrow A=8,34:0,3=27,8\)
\(\Rightarrow A.1,6=27,8.1,6=44,48\)
Vậy tích đúng của phép nhân là 44,48.
Gọi số nhân với 1,6 là a
Theo bài ra,ta có:
a x1,9-a x1,6=8,34
a x (1,9-1,6)=8,34
a x0,3=8,34
a=8,34:0,3
a=27,8
=>tích đúng của phép nhân là:
27,8 x1,6=44,48
đ/s:...
hok giỏi nha bn!
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