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
56 + 10 = ______
96 − 10 = ______
2 × 10 = ______
91 − 10 = ______
38 + 20 = ______
26 + 20 = ______
23 + 20 = ______
4 × 10 = ______
59 − 10 = ______
25 + 10 = ______
11 + 10 = ______
42 − 10 = ______
78 + 20 = ______
75 − 10 = ______
77 + 10 = ______
63 + 20 = ______
6 × 10 = ______
98 − 10 = ______
23 − 10 = ______
81 + 10 = ______
