Toán Lớp 6: a) 62 : 12 + 32 . 4 b) 3.52 + 15.22 – 26:2 c) 64.57 + 64.43 – 2300 d) (-297) + 630 + 297 + (-330) e) 2019 + (-247) + (-53) – 2019 g) 32

Question

Toán Lớp 6:  a) 62 : 12 + 32 . 4 b) 3.52 + 15.22 – 26:2 c) 64.57 + 64.43 – 2300 d) (-297) + 630 + 297 + (-330) e) 2019 + (-247) + (-53) – 2019 g) 32.5 – 22.7 + 8 h) 129 – 5[29 – (6 – 1)2] i) 37.25 + 75.37 – 500

phuongthaongoc · Answer

Giải đáp:   a,   b,   c,   d,   e,   h,

ngochuong2k2 · Answer

a) 62 : 12 + 32 . 4       = 6 + 128       =  134       b) 3.52 + 15.22 &ndash; 26:2       = 156 +  330  - 13       =473       c) 64.57 + 64.43 &ndash; 2300       = 64 * (57+43) -2300       = 64*100   - 2300       =6400-2300       =4100       d) (-297) + 630 + 297 + (-330)       = -297 +297 + 630 + (-330)        = 0 + 300       =300       e) 2019 + (-247) + (-53) &ndash; 2019       =2019 + (-247 + -53)       =2019+(-300)       =1719       g) 32.5 &ndash; 22.7 + 8       =160+154+8       =322       h) 129 &ndash; 5[29 &ndash; (6 &ndash; 1)2]       =129-5[29 &ndash;5.2]       =129-5[29 &ndash;10]       =129-5.19       =129-95       =34        i) 37.25 + 75.37 &ndash; 500       =925+2775-500       =3200       Xin ctlhn