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
42 − 10 = ______
4 × 10 = ______
2 × 10 = ______
65 − 10 = ______
74 + 10 = ______
47 + 20 = ______
21 − 10 = ______
26 − 10 = ______
70 + 10 = ______
52 − 10 = ______
9 × 10 = ______
13 + 20 = ______
35 + 10 = ______
29 + 20 = ______
7 × 10 = ______
56 + 10 = ______
57 + 10 = ______
69 + 10 = ______
59 + 20 = ______
55 − 10 = ______
