Toán Lớp 6: Câu 1.Thực hiện phép tính:a) 23. 34+ 66. 23
b) 2021 -100: 52
c) 87 + (-27)
d) 144: 32-96. 20220
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Toán Lớp 6: Câu 1.Thực hiện phép tính:a) 23. 34+ 66. 23
b) 2021 -100: 52
c) 87 + (-27)
d) 144: 32-96. 20220
Comments ( 2 )
$\text{a, 23.34+66.23 = 23(34+66) = 23.100 = 2300}$\
b. 2021 – 100/52 = 20221 – 1,9 = 2019.48
c, 87+(-27) = 60
a) 23 * 34 + 66 * 23
= 23 * ( 34 + 66 )
= 23 * 100
= 2300
b) 2021 – 100 : 52
= 2021 – 25/13
= 2019 1/13
c) 87 + ( -27 ) = 87 – 27 = 60
d) 144 : 32 – 96 * 2022
= 4,5 – 194112
= -194107,5