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
34 − 10 = ______
85 − 10 = ______
82 − 10 = ______
3 × 10 = ______
31 + 20 = ______
60 + 10 = ______
63 − 10 = ______
16 + 20 = ______
81 − 10 = ______
27 + 20 = ______
1 × 10 = ______
83 + 20 = ______
12 + 10 = ______
84 + 10 = ______
71 + 10 = ______
82 + 10 = ______
22 + 10 = ______
7 × 10 = ______
36 + 20 = ______
76 + 20 = ______
