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
29 + 10 = ______
36 − 10 = ______
97 − 10 = ______
72 + 10 = ______
46 + 10 = ______
60 + 10 = ______
1 × 10 = ______
27 + 10 = ______
71 − 10 = ______
18 + 20 = ______
34 − 10 = ______
56 + 10 = ______
52 − 10 = ______
61 − 10 = ______
40 + 20 = ______
44 + 20 = ______
27 − 10 = ______
37 + 20 = ______
28 + 20 = ______
78 + 20 = ______
