789×0= | 700-470= | 108×4= | 370×3= | 580+420= |
530-40= | 24×5= | 498×6≈ | 125×8= | (16+23) ×2= |
90-34= | 302+497≈ | 510+90= | 25×4-4= | 36÷(8-2) = |
5×( )≈500 |
= | = | 1-= | 902-198= |
54×2= | 620-160= | 200-45= | 297×5= |
530+850= | 90×2= | 924×0= | 451+298= |
62-48= | 470+220= | 603-297≈ | 312×2= | 5×400= |
490×4≈ | 15 +0×8= | 30-10÷5= | = | 1- = |
3×600= | 570﹣250= | 63÷7= | 649×0= |
810﹣300= | 12×5= | 270+330= | 80+320= |
= | = | = | 15+5×7= |