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 = ______
18 + 10 = ______
25 + 20 = ______
16 + 20 = ______
48 − 10 = ______
16 + 10 = ______
30 − 10 = ______
59 + 20 = ______
60 + 20 = ______
21 + 20 = ______
97 − 10 = ______
5 × 10 = ______
42 + 20 = ______
88 − 10 = ______
2 × 10 = ______
33 − 10 = ______
3 × 10 = ______
61 − 10 = ______
32 − 10 = ______
44 − 10 = ______
