小学一年级连续增减的问题

2 47+35-57=

3 30-24+24=

4 46-25+32=

5 8+46-31=

6 46+52-57=

7 52-47+42=

8 46-38+62=

9 57-44+62=

10 36-24+37=

11 34-3+47=

12 42-40+4

13 45-3+35=

14 46-5+9=

15 47+6-29=

16 36-15-8=

17 45-43-1=

18 45-27-9=

19 4+35+24

20 46+13+12

21 35+3+21

22 35-22-11

23 42-5-7

24 35-30-4

25 54+58-14

26 53+38-68

27 47+57+21

28 36+25-37

29 63-37-14

30 47-26-14