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
38 + 10 = ______
6 × 10 = ______
41 − 10 = ______
89 + 10 = ______
44 + 10 = ______
42 + 20 = ______
7 × 10 = ______
11 + 20 = ______
1 × 10 = ______
27 + 10 = ______
49 + 10 = ______
15 + 20 = ______
75 − 10 = ______
8 × 10 = ______
45 + 20 = ______
94 − 10 = ______
99 − 10 = ______
34 + 10 = ______
39 − 10 = ______
25 + 20 = ______
