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
77 − 10 = ______
25 + 10 = ______
69 + 20 = ______
35 − 10 = ______
71 + 10 = ______
49 + 20 = ______
30 + 10 = ______
27 − 10 = ______
5 × 10 = ______
66 − 10 = ______
83 + 10 = ______
8 × 10 = ______
96 − 10 = ______
86 + 20 = ______
62 + 10 = ______
87 − 10 = ______
58 + 10 = ______
82 + 20 = ______
74 − 10 = ______
7 × 10 = ______
