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
73 + 20 = ______
4 × 10 = ______
59 + 20 = ______
58 − 10 = ______
66 + 20 = ______
81 + 20 = ______
6 × 10 = ______
63 − 10 = ______
35 − 10 = ______
5 × 10 = ______
8 × 10 = ______
86 + 20 = ______
42 + 20 = ______
71 + 10 = ______
77 + 20 = ______
2 × 10 = ______
85 + 20 = ______
82 + 10 = ______
49 + 10 = ______
26 − 10 = ______
