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
47 − 10 = ______
60 + 10 = ______
4 × 10 = ______
34 − 10 = ______
57 − 10 = ______
45 − 10 = ______
1 × 10 = ______
69 − 10 = ______
87 − 10 = ______
48 + 10 = ______
65 + 20 = ______
29 + 20 = ______
35 + 10 = ______
50 + 10 = ______
22 + 10 = ______
59 − 10 = ______
68 + 10 = ______
58 + 20 = ______
88 + 20 = ______
72 + 20 = ______
