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
23 + 10 = ______
25 + 20 = ______
65 − 10 = ______
84 + 20 = ______
86 + 20 = ______
81 + 10 = ______
4 × 10 = ______
38 − 10 = ______
46 + 20 = ______
55 − 10 = ______
56 − 10 = ______
1 × 10 = ______
72 − 10 = ______
63 − 10 = ______
12 + 10 = ______
38 + 20 = ______
35 + 10 = ______
39 + 10 = ______
89 + 10 = ______
59 + 10 = ______
