Ôn Toán giữa HK I

Question

Thực hiện phép tính:

a) 48 . 19 + 48 .115 + 134 .52

b) 5^6 : 5^4 + 2^3 . 2^2 - 1^2017

Answer 1

a) 48 . 19 + 48 .115 + 134 .52

= 48 . ( 19 + 115) + 134 . 52

= 48 . 134 + 134 . 52

= 134 . ( 48+52)

= 134 . 100

= 13400

b) 5^6 : 5^4 + 2^3 . 2^2 - 1^2017

= 5^2 + 2^5 - 1

= 25 + 32 - 1

= 56

Answer 2

a) 48.19+48.115+134.52=48.(19+115)+134.52=48.134+134.52=134.(48+52)=134.100=13400
b)5^6:5^4+2^3.2^2-1^2017=5^2+2^5-1=25+32-1=56
Mấy bài này không khó đâu, cố lên nhé

Answer 3

a) 48.19 48.115 134.52
=48.(19 115)+134.52
=48.134 134.52
=134.(48 52)
=134.100
=13400

b)5^6:5^4 2^3.2^2-1^2017
=5^2 2^5-1
=25 32-1
=56

Answer 4

a) 48 . 19 + 48 .115 + 134 .52
= 48 . ( 19 + 115) + 134 . 52
= 48 . 134 + 134 . 52
= 134 . ( 48+52)
= 134 . 100
= 13400
b) 5^6 : 5^4 + 2^3 . 2^2 - 1^2017
= 5^2 + 2^5 - 1
= 25 + 32 - 1
=56
Chúc bn học tốt nha!!!! thanks

Answer 5

a,48*19+48*115+134*52

= 48*(19+115)+134*52

= 48*134+134*52

=134*(48+52)

= 13400

b,5^6:5^4+2^3.2^2-1^2017

=25+32-1

=56