Đặt tính : ghi rõ ạ                                                                                           265,87 x 63 14,63 x 34,75 54,008 x 82,6 37,65 x 7,9 45,54 : 18 919,44 : 36 45,54 : 18 216,72 : 4,2 8,568 : 3,6 100 : 2,5 76,65 : 15 74,76 : 2,1 1:1               Tính thuận tiện                                                                                                 1. 7,5 x 2,5 x0,04                                                 5. 6,48x 11,25 - 6,48 x 1,25 2. 73,5 x 35 ,64 + 43,5x 64,36                           6. 3,67 x 58,35+ 58,35 x 6,33 3. 1 11/9 + 7/6 x (2-1/3)      7. 1 1/21 : ( 15,75- 15 1/4) + 2 1/12 : ( 7 3/7 - 7,25) 4. 3,12x8x1,25

Question 11: walking/ We/the/beach./like/on/ *

Question 12: will/ week./ grandparents/ Hue Imperial City / visit/ My/ next/ *

Question 13: do/ school/ you/ What/ today?/ subjects/ learn/ at/ *

Question 14: new/ There/ the/ sea./ is/ a/ hotel/ by/ *

Question 15: at home/ Phong/ books./ stays/ and/ reads/ *

Question 13: often/ does/ How/ swimming/ Nam's/ go/ father/ ? *

Question 14: she/ does/ do/ What/ dinner/ often/ after/ ? *

Question 15: the/ always/ His/ cleans/ house/ mother/ at/ the/ weekend/ . *