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
4 × 10 = ______
95 − 10 = ______
58 − 10 = ______
38 + 20 = ______
61 − 10 = ______
89 + 10 = ______
77 + 20 = ______
96 − 10 = ______
52 + 10 = ______
79 + 10 = ______
78 + 20 = ______
57 − 10 = ______
7 × 10 = ______
17 + 20 = ______
5 × 10 = ______
39 + 10 = ______
59 − 10 = ______
61 + 10 = ______
47 − 10 = ______
56 − 10 = ______
