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
7 × 10 = ______
38 − 10 = ______
33 − 10 = ______
9 × 10 = ______
4 × 10 = ______
8 × 10 = ______
29 + 10 = ______
53 − 10 = ______
68 + 20 = ______
17 + 10 = ______
34 + 20 = ______
5 × 10 = ______
66 − 10 = ______
35 + 20 = ______
27 − 10 = ______
77 − 10 = ______
99 − 10 = ______
55 + 10 = ______
1 × 10 = ______
31 − 10 = ______
