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
1 × 10 = ______
77 + 10 = ______
23 + 20 = ______
16 + 20 = ______
99 − 10 = ______
64 + 20 = ______
32 + 10 = ______
89 + 10 = ______
76 + 10 = ______
82 + 10 = ______
87 − 10 = ______
5 × 10 = ______
23 − 10 = ______
7 × 10 = ______
54 + 10 = ______
79 − 10 = ______
54 − 10 = ______
36 − 10 = ______
79 + 20 = ______
62 + 10 = ______
