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
36 + 20 = ______
67 + 20 = ______
45 − 10 = ______
61 − 10 = ______
94 − 10 = ______
58 + 20 = ______
85 − 10 = ______
78 + 10 = ______
14 + 20 = ______
59 + 20 = ______
77 + 10 = ______
59 + 10 = ______
57 + 20 = ______
4 × 10 = ______
55 − 10 = ______
25 − 10 = ______
89 − 10 = ______
2 × 10 = ______
39 + 20 = ______
71 − 10 = ______
