37.2km 36km800m 36.08km 37km80m
>>>
126+=200 411+289= +34=100 69+=200+215=500 283+=600
812-=186 ÷58=43 792÷=36
7×1.14.7 1.02×0.51.02 1.98+1.891.98×1.89
3200÷25÷4
125×16×25 72+72×199 672-36+64
1,3,2,6,4,9,8,,,15,,18,……
3.2÷0.01= 5.6+3.99= ÷ =
× = 4.1+1÷2=