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
37 + 10 = ______
80 − 10 = ______
3 × 10 = ______
13 + 10 = ______
87 − 10 = ______
18 + 20 = ______
6 × 10 = ______
34 − 10 = ______
73 + 20 = ______
54 + 20 = ______
44 + 20 = ______
81 + 10 = ______
5 × 10 = ______
28 + 10 = ______
51 − 10 = ______
50 − 10 = ______
90 − 10 = ______
4 × 10 = ______
21 + 10 = ______
25 + 20 = ______
