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
22 − 10 = ______
5 × 10 = ______
63 + 10 = ______
25 − 10 = ______
4 × 10 = ______
23 + 20 = ______
1 × 10 = ______
82 + 20 = ______
18 + 20 = ______
71 + 20 = ______
65 + 10 = ______
29 + 20 = ______
2 × 10 = ______
61 + 10 = ______
38 − 10 = ______
37 + 20 = ______
16 + 20 = ______
7 × 10 = ______
40 − 10 = ______
62 − 10 = ______
