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
72 + 10 = ______
86 − 10 = ______
6 × 10 = ______
85 + 10 = ______
5 × 10 = ______
28 + 20 = ______
61 + 10 = ______
56 − 10 = ______
74 − 10 = ______
14 + 20 = ______
2 × 10 = ______
22 + 20 = ______
51 + 20 = ______
1 × 10 = ______
78 − 10 = ______
81 + 20 = ______
80 + 10 = ______
67 − 10 = ______
59 + 10 = ______
82 + 10 = ______
