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
55 − 10 = ______
28 + 10 = ______
34 − 10 = ______
63 − 10 = ______
18 + 10 = ______
70 − 10 = ______
52 + 20 = ______
89 − 10 = ______
9 × 10 = ______
78 + 10 = ______
48 + 20 = ______
7 × 10 = ______
8 × 10 = ______
27 − 10 = ______
82 + 20 = ______
4 × 10 = ______
99 − 10 = ______
51 + 10 = ______
50 + 10 = ______
5 × 10 = ______
