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
37 + 10 = ______
3 × 10 = ______
52 + 10 = ______
11 + 20 = ______
77 − 10 = ______
27 + 20 = ______
59 − 10 = ______
8 × 10 = ______
53 + 20 = ______
9 × 10 = ______
92 − 10 = ______
64 + 10 = ______
7 × 10 = ______
31 − 10 = ______
50 + 10 = ______
79 + 10 = ______
50 − 10 = ______
81 + 20 = ______
28 + 10 = ______
78 − 10 = ______
