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
7 × 10 = ______
36 + 10 = ______
13 + 20 = ______
3 × 10 = ______
35 + 10 = ______
17 + 20 = ______
4 × 10 = ______
22 − 10 = ______
25 + 20 = ______
68 + 20 = ______
69 + 10 = ______
61 + 20 = ______
61 − 10 = ______
63 + 20 = ______
55 + 20 = ______
85 + 20 = ______
91 − 10 = ______
30 − 10 = ______
62 − 10 = ______
82 − 10 = ______
