\(19\cdot64+76\cdot34\)
\(=19\cdot64+19\cdot4\cdot34\)
\(=19\cdot64+19\cdot136\)
\(=19\cdot\left(64+136\right)\)
\(=19\cdot200\)
\(=3800\)
19 x 64 + 76 x 34
= 38 x 32 + 38 x 68
= 38 x ( 32 + 68)
= 38 x 100
= 3800
19·64+76·34
=19·64+19·4·34
=19·64+19·136
=19·(64+136)
=19·200
=3800
19·64+76·34
=19·64+19·4·34
=19·64+19·136
=19·(64+136)
=19·200
19·64+76·34
=19·64+19·4·34
=19·64+19·136
=19·(64+136)
=19·200
19 x 64+ 76 x 34
=19x64+19x4x34
=19x(64+4+34)
=19x102
=1938
19.64+76.34
=19.64+19.4.34
=19.64+19.136
=19.(64+136)
=19.200
=3800
Sorry~~
\(19.64+76.34\)
\(=19.64+19.4.34\)
\(=19.64+19.136\)
\(=19.\left(64+136\right)\)
\(=19.200\)
\(=3800\)
Tính nhanh :
19 × 64 + 76 × 34
= 19 × 64 + 19 × 4 × 34
= 19 × 64 + 19 × 136
= 19 × ( 64 + 136 )
= 19 × 200
= 19 × 100 × 2
= 1900 × 2
= 3800
19 x 64 + 76 x 34
= 19 x 64 + 19 x 4 x 34
= 19 x 64 + 19 x 136
= 19 x ( 64 + 136 )
=19 x 200
= 3800
19 x 64 + 76 x 34
= 19 x 64 + 76 x 19 x 4 x 34
= 19 x 64 + 19 x 136
= 19 x ( 64 + 136 )
= 3800
