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
88 + 20 = ______
47 + 20 = ______
37 − 10 = ______
87 − 10 = ______
72 + 10 = ______
59 + 20 = ______
7 × 10 = ______
48 − 10 = ______
1 × 10 = ______
2 × 10 = ______
97 − 10 = ______
11 + 20 = ______
41 + 10 = ______
82 − 10 = ______
31 − 10 = ______
67 + 20 = ______
80 + 10 = ______
92 − 10 = ______
57 − 10 = ______
52 + 20 = ______
