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
36 + 10 = ______
59 + 20 = ______
18 + 20 = ______
45 + 20 = ______
30 + 10 = ______
21 + 10 = ______
2 × 10 = ______
52 + 20 = ______
41 + 20 = ______
6 × 10 = ______
33 − 10 = ______
71 + 10 = ______
90 − 10 = ______
46 + 10 = ______
32 − 10 = ______
94 − 10 = ______
38 + 20 = ______
9 × 10 = ______
83 − 10 = ______
22 − 10 = ______
