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
81 − 10 = ______
84 + 10 = ______
5 × 10 = ______
57 − 10 = ______
34 + 20 = ______
8 × 10 = ______
13 + 20 = ______
68 + 20 = ______
72 + 10 = ______
6 × 10 = ______
76 − 10 = ______
82 − 10 = ______
13 + 10 = ______
46 + 20 = ______
57 + 10 = ______
7 × 10 = ______
36 + 20 = ______
1 × 10 = ______
47 + 20 = ______
75 + 10 = ______
