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
52 + 20 = ______
62 + 10 = ______
3 × 10 = ______
85 + 20 = ______
79 + 20 = ______
8 × 10 = ______
28 + 10 = ______
51 − 10 = ______
46 + 20 = ______
71 + 10 = ______
39 − 10 = ______
59 + 10 = ______
94 − 10 = ______
63 − 10 = ______
61 − 10 = ______
26 − 10 = ______
6 × 10 = ______
85 + 10 = ______
9 × 10 = ______
37 + 20 = ______
