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
61 − 10 = ______
87 + 10 = ______
70 − 10 = ______
64 + 10 = ______
58 + 10 = ______
82 + 20 = ______
56 + 10 = ______
58 − 10 = ______
15 + 20 = ______
3 × 10 = ______
41 − 10 = ______
8 × 10 = ______
9 × 10 = ______
42 + 20 = ______
1 × 10 = ______
55 − 10 = ______
50 − 10 = ______
87 − 10 = ______
63 + 10 = ______
59 + 10 = ______
