Toán Lớp 6: a) 27 . 75 + 25 . 27 – 150;
b) 142 – [50 – (23.10 – 23.5)]
c) 375 : {32 – [ 4 + (5. 32 – 42)]} – 14
d) {210 : [16 + 3.(6 + 3. 22)]} – 3
e) 500 – {5[409 – (2³.3 – 21)²] – 1724}
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Toán Lớp 6: a) 27 . 75 + 25 . 27 – 150;
b) 142 – [50 – (23.10 – 23.5)]
c) 375 : {32 – [ 4 + (5. 32 – 42)]} – 14
d) {210 : [16 + 3.(6 + 3. 22)]} – 3
e) 500 – {5[409 – (2³.3 – 21)²] – 1724}
Comments ( 1 )
=27.(75+25)-150
=27.100-150
=2700-150
=2550