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
63 − 10 = ______
71 − 10 = ______
84 − 10 = ______
58 − 10 = ______
23 − 10 = ______
60 + 20 = ______
79 − 10 = ______
96 − 10 = ______
4 × 10 = ______
91 − 10 = ______
46 + 20 = ______
45 + 10 = ______
9 × 10 = ______
8 × 10 = ______
76 + 10 = ______
57 − 10 = ______
5 × 10 = ______
89 + 10 = ______
2 × 10 = ______
89 + 20 = ______
