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
55 + 10 = ______
50 + 10 = ______
98 − 10 = ______
89 − 10 = ______
15 + 10 = ______
86 − 10 = ______
3 × 10 = ______
79 + 10 = ______
65 + 20 = ______
15 + 20 = ______
4 × 10 = ______
67 − 10 = ______
89 + 10 = ______
60 − 10 = ______
72 + 10 = ______
69 − 10 = ______
63 + 20 = ______
81 + 10 = ______
66 + 20 = ______
12 + 10 = ______
