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
63 − 10 = ______
22 + 20 = ______
49 + 10 = ______
16 + 20 = ______
88 + 10 = ______
20 + 10 = ______
71 − 10 = ______
5 × 10 = ______
29 − 10 = ______
84 + 20 = ______
46 + 20 = ______
56 + 10 = ______
9 × 10 = ______
56 − 10 = ______
65 − 10 = ______
19 + 10 = ______
47 + 20 = ______
86 + 10 = ______
34 − 10 = ______
82 + 10 = ______
