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
75 + 10 = ______
3 × 10 = ______
73 + 10 = ______
25 + 20 = ______
87 − 10 = ______
48 + 20 = ______
29 + 20 = ______
43 − 10 = ______
9 × 10 = ______
47 + 20 = ______
23 − 10 = ______
5 × 10 = ______
30 + 20 = ______
39 + 20 = ______
55 + 10 = ______
53 + 20 = ______
88 − 10 = ______
6 × 10 = ______
25 − 10 = ______
27 + 10 = ______
