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
82 + 20 = ______
48 + 10 = ______
22 + 10 = ______
99 − 10 = ______
4 × 10 = ______
64 + 10 = ______
47 + 10 = ______
22 + 20 = ______
25 + 20 = ______
93 − 10 = ______
68 + 20 = ______
81 − 10 = ______
79 + 10 = ______
21 + 10 = ______
27 − 10 = ______
42 − 10 = ______
1 × 10 = ______
86 + 10 = ______
2 × 10 = ______
59 + 10 = ______
