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
85 + 10 = ______
63 + 20 = ______
88 + 10 = ______
78 + 10 = ______
5 × 10 = ______
85 + 20 = ______
43 + 20 = ______
66 − 10 = ______
6 × 10 = ______
38 − 10 = ______
70 + 20 = ______
48 − 10 = ______
73 − 10 = ______
52 − 10 = ______
7 × 10 = ______
17 + 20 = ______
23 + 20 = ______
28 + 20 = ______
1 × 10 = ______
36 + 20 = ______
