123+25=148123-35=88

248+89=337...146-23=123...155×5=775...456-12=38...

456+45=501...546-457=89...45×10=451...564-12=47...

879+54=933...896-546=350...56×12=672....45-5=9...

457+456=913...

7+14=21...18-9=9...

8+16=24...25-5=20...

9+18=27...56-45=11...

10+20=30...45-23=22...

11+22=33...78-23=55...

12+24=36...

10-3=7

15-4=11

20-5=15

25-6=19

30-7=23

35-8=27

40-9=31

45-10=35

50-11=39

55-12=43

60-13=47

65-14=51

70-15=55

75-16=59

80-17=63

85-18=67

90-19=71

95-20=75

100-21=79

105-22=83

110-23=87

115-24=91

120-25=95

125-26=99

130-27=103