\u0110\u1ec1 thi h\u1ecdc k\u00ec 1 m\u00f4n To\u00e1n l\u1edbp 5 c\u00f3 \u0111\u00e1p \u00e1n<\/h1>\n

C\u00e2u 1: (3 \u0111i\u00ea\u0309m)<\/strong>\u00a0Khoanh v\u00e0o ch\u1eef \u0111\u1eb7t tr\u01b0\u1edbc c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang: (m\u00f4\u0303i c\u00e2u 0,5\u0111)<\/p>\n

a) Ch\u1eef s\u1ed1 5 trong s\u1ed1 th\u1eadp ph\u00e2n 879,457 c\u00f3 gi\u00e1 tr\u1ecb l\u00e0:<\/p>\n

A. 5\/10 \u00a0 \u00a0 \u00a0 \u00a0 B. 5\/10000 \u00a0 \u00a0 \u00a0 \u00a0 C. 5\/100 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0D. 5\/1000<\/p>\n

b) S\u1ed1 l\u1edbn nh\u1ea5t trong c\u00e1c s\u1ed1: 0,6; 0,32; 0,047; 0,205 l\u00e0:<\/p>\n

A. 0,32 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0B. 0,6 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 C. 0,047 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 D. 0,205<\/p>\n

c) Di\u00ea\u0323n ti\u0301ch cu\u0309a m\u00f4\u0323t hi\u0300nh ch\u01b0\u0303 nh\u00e2\u0323t co\u0301 chi\u00ea\u0300u da\u0300i 2,18dm, chi\u00ea\u0300u r\u00f4\u0323ng 1,5dm la\u0300:<\/p>\n

A. 3,247dm^{2<\/sup>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0B. 32,7 dm2<\/sup>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0C. 3,27 dm2<\/sup>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0D. 3,207 dm2<\/sup><\/p>\n}

d) 30% cu\u0309a 97 l\u00e0:<\/p>\n

A. 0,291 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0B. 291 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 C. 2,91 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0D. 29,1<\/p>\n

\u0111) Ti\u0300m s\u00f4\u0301 t\u01b0\u0323 nhi\u00ean y sao cho: 3,4 x y = 20,4<\/p>\n

A. y = 5 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 B. y = 6 \u00a0 \u00a0 \u00a0 \u00a0C. y = 7 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 D. y = 8<\/p>\n

e) S\u1ed1 th\u00edch h\u1ee3p ch\u1ed7 co\u0301 d\u00e2\u0301u ch\u1ea5m: 4dm^{2<\/sup>\u00a025mm2<\/sup>\u00a0= ………………….mm2<\/sup><\/p>\n}

A. 40025 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 B. 40250 \u00a0 \u00a0 \u00a0 \u00a0 C. 42500 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0D. 4250<\/p>\n

C\u00e2u 2<\/strong>. \u0110\u1eb7t t\u00ednh r\u1ed3i t\u00ednh: (2\u0111)<\/p>\n

a) 397,45 + 32,473<\/p>\n

b) 627,50 \u2013 461,39<\/p>\n

c) 34,05 x 4,6<\/p>\n

d) 45,54 : 1,8<\/p>\n

C\u00e2u 3<\/strong>. Ti\u0301nh: (1,5\u0111)<\/p>\n

3,9 x 100 = ………………<\/p>\n

23,1 : 100 = …………………<\/p>\n

30,09 x 1000 = ………………<\/p>\n

C\u00e2u 4.<\/strong>\u00a0(1,5\u0111)<\/p>\n

a) Ti\u0300m x \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0b) Ti\u0301nh b\u0103\u0300ng ca\u0301ch thu\u00e2\u0323n ti\u00ea\u0323n nh\u00e2\u0301t:<\/p>\n

7,9 \u2013 X = 2,5 + 0,3 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 26,34 x 0,5 + 26,34 x 0,5
\n……………………………….. …………………………………………
\n……………………………….. …………………………………………
\n……………………………….. …………………………………………
\n……………………………….. …………………………………………<\/p>\n

C\u00e2u 5.<\/strong>\u00a0M\u1ed9t ma\u0309nh \u0111\u00e2\u0301t h\u00ecnh ch\u01b0\u0303 nh\u00e2\u0323t c\u00f3 chi\u00ea\u0300u da\u0300i 28m, chi\u00ea\u0300u r\u00f4\u0323ng 15m. Ng\u01b0\u01a1\u0300i ta da\u0300nh 20% di\u00ea\u0323n ti\u0301ch \u0111\u00ea\u0309 tr\u00f4\u0300ng rau. T\u00ednh di\u00ea\u0323n ti\u0301ch ph\u00e2\u0300n \u0111\u00e2\u0301t tr\u00f4\u0300ng rau? (2\u0111)<\/p>\n

B\u00e0i gi\u1ea3i
\n………………………………………………………………………………………
\n………………………………………………………………………………………
\n………………………………………………………………………………………
\n………………………………………………………………………………………<\/p>\n

 <\/p>\n

\u0110\u00c1P \u00c1N \u0110\u1ec0 THI H\u1eccC K\u00cc 1 M\u00d4N TO\u00c1N L\u1edaP 5<\/strong><\/h2>\n

C\u00e2u 1:<\/strong>\u00a0Khoanh v\u00e0o ch\u1eef \u0111\u1eb7t tr\u01b0\u1edbc c\u00e2u tr\u1ea3 l\u1eddi chi\u0301nh xa\u0301c m\u00f4\u0303i c\u00e2u \u0111\u01b0\u01a1\u0323c 0,5\u0111<\/p>\n\n\n\n\n

\n C\u00e2u<\/strong><\/p>\n<\/td>\n	\n a<\/p>\n<\/td>\n	\n b<\/p>\n<\/td>\n	\n c<\/p>\n<\/td>\n	\n d<\/p>\n<\/td>\n	\n \u0111<\/p>\n<\/td>\n	\n e<\/p>\n<\/td>\n<\/tr>\n
\n Khoanh\u00a0\u0111u\u0301ng<\/strong><\/p>\n<\/td>\n	\n C<\/p>\n<\/td>\n	\n B<\/p>\n<\/td>\n	\n C<\/p>\n<\/td>\n	\n D<\/p>\n<\/td>\n	\n B<\/p>\n<\/td>\n	\n A<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n C\u00e2u 2.<\/strong>\u00a0\u0110\u1eb7t t\u00ednh \u0111u\u0301ng m\u00f4\u0303i ba\u0300i 0,5 \u0111i\u00ea\u0309m. L\u01b0u phe\u0301p nh\u00e2n pha\u0309i xem t\u01b0\u0300ng ti\u0301ch ri\u00eang; phe\u0301p chia pha\u0309i xem s\u00f4\u0301 d\u01b0 t\u01b0\u01a1ng \u01b0\u0301ng v\u01a1\u0301i t\u01b0\u0300ng ch\u01b0\u0303 s\u00f4\u0301 cu\u0309a th\u01b0\u01a1ng.<\/p>\n a) 1,833 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0b) 53,108 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 c) 37,281 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 d) 25,3<\/p>\n C\u00e2u 3.<\/strong>\u00a0Ti\u0301nh: (1,5\u0111)<\/p>\n 3,9 x 100 = 390 (0,5\u0111) \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a023,1 : 100 = 0,231 (0,5\u0111)<\/p>\n 30,09 x 1000 = 30090 (0,5\u0111)<\/p>\n C\u00e2u 4.<\/strong>\u00a0(1,5\u0111 )<\/p>\n a) Ti\u0300m x: \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 b) Ti\u0301nh b\u0103\u0300ng ca\u0301ch thu\u00e2\u0323n ti\u00ea\u0323n nh\u00e2\u0301t:<\/p>\n 7,9 \u2013 X = 2,5 + 0,3 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 26,34 x 0,5 + 26,34 x 0,5<\/p>\n 7,9 \u2013 X = 2,8 (0,25\u0111) \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 = 26,34 x (0,5 + 0,5) (0,25\u0111)<\/p>\n X = 7,9 \u2013 2,8 (0,25\u0111) \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 = 26,34 x 1 = 26,34 (0,25\u0111)<\/p>\n X = 5,1 (0,5\u0111)<\/p>\n C\u00e2u 5.<\/strong>\u00a0(2 \u0111i\u1ec3m)<\/p>\n Gi\u1ea3i:<\/p>\n Di\u00ea\u0323n ti\u0301ch ma\u0309nh \u0111\u00e2\u0301t hi\u0300nh ch\u01b0\u0303 nh\u00e2\u0323t l\u00e0: (0,5\u0111)<\/p>\n 28 x 15 = 420 (m2<\/sup>) (0,5\u0111)<\/p>\n Di\u00ea\u0323n ti\u0301ch ph\u00e2\u0300n \u0111\u00e2\u0301t tr\u00f4\u0300ng rau l\u00e0: (0,5\u0111)<\/p>\n 420 x 20 : 100 = 84 (m2<\/sup>) (0,5\u0111)<\/p>\n \u0110\u00e1p s\u1ed1: 84 m2<\/sup>.<\/p>\n  <\/p>\n","protected":false},"excerpt":{"rendered":" \u0110\u1ec1 thi h\u1ecdc k\u00ec 1 m\u00f4n To\u00e1n l\u1edbp 5 c\u00f3 \u0111\u00e1p \u00e1n C\u00e2u 1: (3 \u0111i\u00ea\u0309m)\u00a0Khoanh v\u00e0o ch\u1eef \u0111\u1eb7t tr\u01b0\u1edbc c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang: (m\u00f4\u0303i c\u00e2u 0,5\u0111) a) Ch\u1eef s\u1ed1… <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[413],"tags":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts\/5735"}],"collection":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/comments?post=5735"}],"version-history":[{"count":0,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts\/5735\/revisions"}],"wp:attachment":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/media?parent=5735"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/categories?post=5735"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/tags?post=5735"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}