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
53 − 10 = ______
12 + 20 = ______
88 + 20 = ______
60 + 20 = ______
51 − 10 = ______
8 × 10 = ______
45 − 10 = ______
46 + 10 = ______
62 + 10 = ______
30 + 10 = ______
74 + 20 = ______
7 × 10 = ______
54 + 20 = ______
40 + 10 = ______
1 × 10 = ______
66 + 20 = ______
50 + 10 = ______
82 − 10 = ______
57 − 10 = ______
25 − 10 = ______
