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 = ______
46 + 20 = ______
30 + 20 = ______
6 × 10 = ______
57 − 10 = ______
52 + 20 = ______
82 + 10 = ______
69 + 20 = ______
64 + 20 = ______
1 × 10 = ______
53 − 10 = ______
94 − 10 = ______
84 − 10 = ______
41 − 10 = ______
69 − 10 = ______
5 × 10 = ______
62 + 10 = ______
8 × 10 = ______
29 + 10 = ______
22 − 10 = ______
