Question

35x4x35 的简便计算

Answer 1

35^2×4=4900

追答

35^2×2^2=70^2=4900

追问

？是35x4x35

Answer 2

5×7×4×5x7
=(4x5x5)x(7x7)
=(20x5)x49
=100x49
=4900

Answer 3

35×4×35
＝35×4×5×7
＝140×5×7
＝700×7
＝4900

Answer 4

35x4x35 =35X2X4

Answer 5

(35×2)(35×2)=70×70=4900