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
2 × 10 = ______
52 + 10 = ______
59 + 10 = ______
61 − 10 = ______
4 × 10 = ______
91 − 10 = ______
1 × 10 = ______
81 − 10 = ______
7 × 10 = ______
49 − 10 = ______
34 − 10 = ______
36 + 20 = ______
57 − 10 = ______
12 + 20 = ______
74 + 20 = ______
43 + 10 = ______
6 × 10 = ______
3 × 10 = ______
5 × 10 = ______
26 + 10 = ______
