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
24 + 10 = ______
8 × 10 = ______
13 + 20 = ______
4 × 10 = ______
45 − 10 = ______
73 + 10 = ______
75 − 10 = ______
37 + 20 = ______
53 − 10 = ______
48 + 20 = ______
38 + 10 = ______
31 + 10 = ______
27 + 20 = ______
32 + 20 = ______
25 − 10 = ______
52 − 10 = ______
37 + 10 = ______
59 − 10 = ______
19 + 20 = ______
7 × 10 = ______
