Question

a.9700 : 100 + 36 x 12

b.(160 x 5 - 25 x 4) : 4

c.108 x (23 + 7)

d.215 x 86 + 215 x 14

e.53 x 128 - 43 x 128

 

Answer 1

9700 : 100 + 36 x 12 = 529

(160 x 5 - 25 x 4) : 4= 175

108 x (23 + 7) = 3240

215 x 86 + 215 x 14 = 21500

3 x 128 - 43 x 128= -5120

Answer 2

529

175

3240

21500

-5120 (lớp 4 học âm hẻ)

Answer 3

529

175

3240

21500

....

Answer 4

a.9700 : 100 + 36 x 12=97 + 432=529

b.(160 x 5 - 25 x 4) : 4=700:4=175

c.108 x (23 + 7)=180 x 30 =5400

d.215 x 86 + 215 x 14= 215(86+14)=215 x 100 = 21500

e.53 x 128 - 43 x 128=128(53-43)=128 x 10 =1280

Answer 5

\(=97+36\times12\)

\(=97+432\)

\(=539\)

 

\(=(800-100):4\)

\(=8:4\)

\(=2\)

 

= \(108\times30\)

\(=3240\)

 

\(18490+3010\)

\(=21500\)

 

\(=384-5504\)

= -5120

 

 

Answer 6

9700 : 100 + 36 x 12

= 97 + 432
= 529

(160 x 5 - 25 x 4) : 4

= 700 : 4

= 175

108 x (23 + 7)

= 108 x 30
= 3240

215 x 86 + 215 x 14
= 215 x ( 86 + 14)

= 215 x 100

= 21500

3 x 128 - 43 x 128

= 128 x ( 53 - 43)

= 128 x 10

= 1280