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
91 − 10 = ______
14 + 10 = ______
87 + 10 = ______
3 × 10 = ______
5 × 10 = ______
7 × 10 = ______
93 − 10 = ______
14 + 20 = ______
39 + 10 = ______
63 + 10 = ______
62 − 10 = ______
82 − 10 = ______
83 + 20 = ______
4 × 10 = ______
65 + 10 = ______
36 + 10 = ______
54 + 10 = ______
29 − 10 = ______
55 + 20 = ______
70 − 10 = ______
