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
1 × 10 = ______
17 + 10 = ______
57 + 10 = ______
53 + 10 = ______
66 + 10 = ______
35 + 10 = ______
12 + 20 = ______
28 − 10 = ______
6 × 10 = ______
17 + 20 = ______
85 + 20 = ______
5 × 10 = ______
23 + 10 = ______
82 + 10 = ______
27 − 10 = ______
59 + 10 = ______
37 − 10 = ______
52 − 10 = ______
9 × 10 = ______
65 − 10 = ______
