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
6 × 10 = ______
89 + 20 = ______
86 + 20 = ______
59 + 10 = ______
71 + 10 = ______
5 × 10 = ______
16 + 10 = ______
75 − 10 = ______
82 − 10 = ______
7 × 10 = ______
78 + 10 = ______
66 − 10 = ______
56 + 10 = ______
8 × 10 = ______
61 + 20 = ______
54 − 10 = ______
87 + 10 = ______
95 − 10 = ______
76 + 20 = ______
36 + 20 = ______
