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
32 + 20 = ______
8 × 10 = ______
40 − 10 = ______
75 − 10 = ______
82 + 10 = ______
61 − 10 = ______
56 + 20 = ______
30 + 10 = ______
70 + 10 = ______
63 + 10 = ______
63 + 20 = ______
95 − 10 = ______
4 × 10 = ______
55 + 20 = ______
65 − 10 = ______
21 + 20 = ______
78 + 10 = ______
74 − 10 = ______
26 + 10 = ______
53 + 20 = ______
