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
9 × 10 = ______
2 × 10 = ______
38 + 20 = ______
8 × 10 = ______
3 × 10 = ______
4 × 10 = ______
1 × 10 = ______
17 + 10 = ______
66 + 20 = ______
5 × 10 = ______
6 × 10 = ______
53 + 20 = ______
7 × 10 = ______
41 + 10 = ______
72 + 10 = ______
48 + 10 = ______
68 − 10 = ______
48 − 10 = ______
34 + 10 = ______
36 − 10 = ______
