Устный счёт. 4 класс. Разминка для ума.

Устный счёт

4 класс

85-38=                                              64+34=

30:3=                                               44-5=

7*5=                                                    99:9=

56+30=                                            120:4=

36: 4=                                                  5*6=

……………………………………………………………………………….

41+39=                                           410+340=

4*8=                                               80*7=

24:8=                                              5*7=

60:10=                                            63+9=

520-30=                                          42:7=

……………………………………………………………………………….

81:9=                                                66-41=

5*10=                                           45:5=

54:6=                                            0*7=

93-18=                                          48+11=

2*80=                                           3*8=

…………………………………………………………………………………..

81:9=                                                66-41=

5*10=                                           45:5=

54:6=                                            0*7=

93-18=                                          48+11=

2*80=                                           3*8=