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
33 + 10 = ______
78 − 10 = ______
29 + 10 = ______
64 + 20 = ______
93 − 10 = ______
71 + 20 = ______
3 × 10 = ______
87 + 10 = ______
2 × 10 = ______
7 × 10 = ______
6 × 10 = ______
22 − 10 = ______
11 + 10 = ______
63 + 10 = ______
77 − 10 = ______
86 + 10 = ______
87 − 10 = ______
81 − 10 = ______
79 + 10 = ______
74 + 20 = ______
