83+=25+
83+=25+ 39++24 =[+(76+24)
24×=15× 125×5×8×2=(×) ×(5×2)
(25+50) ×4=×4+50× (75×5)×=75×(×2)
(263+{#blank#}1{#/blank#})+58={#blank#}2{#/blank#}+(42+{#blank#}3{#/blank#})
25×37×4=37×{#blank#}4{#/blank#}×{#blank#}5{#/blank#})
(8+22)×125={#blank#}6{#/blank#}×{#blank#}7{#/blank#}+{#blank#}8{#/blank#}×{#blank#}9{#/blank#}
a+(30+8)=({#blank#}1{#/blank#}+{#blank#}2{#/blank#})+8
47×4×25={#blank#}3{#/blank#}×({#blank#}4{#/blank#}×{#blank#}5{#/blank#})
45×{#blank#}6{#/blank#}=32×{#blank#}7{#/blank#}
125×(8×40)=({#blank#}8{#/blank#}×{#blank#}9{#/blank#})×{#blank#}10{#/blank#}