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
14 + 20 = ______
45 − 10 = ______
20 + 20 = ______
15 + 20 = ______
6 × 10 = ______
15 + 10 = ______
82 + 10 = ______
58 + 10 = ______
62 + 20 = ______
60 − 10 = ______
46 + 10 = ______
38 − 10 = ______
8 × 10 = ______
2 × 10 = ______
72 + 20 = ______
27 + 10 = ______
89 − 10 = ______
98 − 10 = ______
49 + 10 = ______
84 − 10 = ______
