Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
95 − 10 = ______
57 + 10 = ______
67 + 20 = ______
31 + 20 = ______
79 − 10 = ______
56 − 10 = ______
3 × 10 = ______
34 + 20 = ______
62 − 10 = ______
80 − 10 = ______
74 + 20 = ______
5 × 10 = ______
83 − 10 = ______
66 + 20 = ______
2 × 10 = ______
63 + 10 = ______
8 × 10 = ______
80 + 10 = ______
35 + 20 = ______
59 − 10 = ______
