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
49 + 20 = ______
8 × 10 = ______
11 + 10 = ______
3 × 10 = ______
40 + 20 = ______
22 − 10 = ______
31 + 10 = ______
41 + 10 = ______
18 + 20 = ______
79 + 10 = ______
33 + 20 = ______
45 + 20 = ______
62 + 10 = ______
9 × 10 = ______
37 − 10 = ______
38 − 10 = ______
1 × 10 = ______
36 − 10 = ______
36 + 10 = ______
30 − 10 = ______
