A.6 | B.8 | C.17 | D.30 |
24×5= | 48.3÷100= | 35×20= | 75﹣15×3= |
60÷4= | 36+154= | 560÷80= | 25×9×4= |
24+16×0= | 420×20= | 0.729×10= | 4×25÷25×4= |
20×4= | 23×2= | 90×30= | 25×4= |
15×50= | 4×15= | 240÷80= | 490÷7= |
4200÷70= | 72÷6= | 60﹣20= | 800÷40= |
98×51≈ | 201×39≈ | 813÷90≈ | 366÷62≈ |
305×57= | 9500÷38= | 426×34= |
1352÷26= | 150×240= | 5250÷52= |
A.30 | B.40 | C.50 |