Tarjeta de preguntas de aritmética oral de quinto grado de la edición Qingdao de Matemáticas

3,14 ×2 = 3,14 × 3 = 3,14 ×4 =

3,14 × 5 = 3,14 ×6 = 3,14 ×7 =

3,14 ×8 = 3,14 ×9= 3.14× 10 =

3.14 ×20 = 3.14× 30= 3.14× 40 =

3.14 ×50 = 3.14× 60 = 3.14 ×70 =

3.14× 0.09 = 3.14 ×0.4 = 3.14 ×0.7 =

3.14× 5 = 3.14 ×60= 3.14 ×0.7 =

3.14 ×0.08 = 3.14 ×0.9= 3.14× 0.1 =

3.14 ×20 = 3.14× 0.3= 3.14× 0.7 =

3.14 ×50 = 3.14× 300 = 3.14 ×70 =

3.14 ×0.2 = 3.14 ×0.6 = 3.14×0.6 =

3.14 ×0.05= 3.14 ×0.7 = 3.14× 80 =

3.14× 0.8 = 3.14 ×90 = 3.14 ×11 =

3.14×50 = 3.14 ×0.06= 3.14 ×0.7 =

3.14 ×0.8 = 3.14 ×90= 3.14× 100=