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
62 − 10 = ______
31 + 10 = ______
99 − 10 = ______
1 × 10 = ______
28 + 20 = ______
4 × 10 = ______
7 × 10 = ______
23 + 20 = ______
60 − 10 = ______
76 + 20 = ______
84 − 10 = ______
74 + 20 = ______
71 − 10 = ______
82 + 20 = ______
55 − 10 = ______
18 + 10 = ______
29 + 20 = ______
62 + 10 = ______
36 + 10 = ______
8 × 10 = ______
