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
5 × 10 = ______
68 + 20 = ______
55 − 10 = ______
57 + 20 = ______
63 + 10 = ______
80 − 10 = ______
2 × 10 = ______
11 + 20 = ______
25 + 20 = ______
12 + 20 = ______
21 + 10 = ______
99 − 10 = ______
69 + 20 = ______
25 − 10 = ______
54 + 20 = ______
69 + 10 = ______
13 + 20 = ______
62 − 10 = ______
9 × 10 = ______
37 + 10 = ______
