Tổng hợp đề thi cuối kì 1 Toán 3 (Đề 45)

a) 691                                      b) 309

c) 75                                        d) 6 dư (1)

a) 315cm  - 15cm  <  300cm + 7cm             b) 515m   =   500 m + 15m

              c) 333cm   >   303cm                                   d) 199 m   <   200m

a) x  x 4 = 36                                        b) 70 :  x  = 7

            x = 36 : 4                                             x = 70 : 7

                                x = 9                                                     x = 10

16 : 3 = 5 dư 1 (hoặc)  25 : 7 = 3 dư 4, .....