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
27 + 10 = ______
38 − 10 = ______
6 × 10 = ______
9 × 10 = ______
74 + 20 = ______
79 + 20 = ______
29 + 10 = ______
7 × 10 = ______
1 × 10 = ______
84 + 20 = ______
11 + 20 = ______
30 + 10 = ______
30 − 10 = ______
75 + 20 = ______
5 × 10 = ______
34 − 10 = ______
45 − 10 = ______
4 × 10 = ______
59 + 10 = ______
28 + 20 = ______
