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
25 + 20 = ______
59 + 10 = ______
50 − 10 = ______
14 + 20 = ______
6 × 10 = ______
30 + 10 = ______
27 + 10 = ______
49 + 10 = ______
7 × 10 = ______
76 + 10 = ______
2 × 10 = ______
62 + 10 = ______
87 + 20 = ______
61 − 10 = ______
21 + 20 = ______
4 × 10 = ______
54 − 10 = ______
78 − 10 = ______
86 + 20 = ______
82 − 10 = ______
