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
69 + 10 = ______
11 + 10 = ______
50 + 20 = ______
41 − 10 = ______
7 × 10 = ______
18 + 10 = ______
38 + 10 = ______
4 × 10 = ______
96 − 10 = ______
73 − 10 = ______
25 + 20 = ______
59 + 10 = ______
73 + 10 = ______
9 × 10 = ______
28 − 10 = ______
40 − 10 = ______
66 + 20 = ______
45 − 10 = ______
29 − 10 = ______
89 + 20 = ______
