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
36 + 10 = ______
11 + 10 = ______
56 − 10 = ______
20 + 20 = ______
85 + 20 = ______
43 − 10 = ______
86 − 10 = ______
38 − 10 = ______
43 + 20 = ______
45 − 10 = ______
24 + 20 = ______
31 + 10 = ______
27 + 20 = ______
3 × 10 = ______
77 − 10 = ______
80 + 10 = ______
60 + 10 = ______
65 + 10 = ______
67 + 20 = ______
7 × 10 = ______
