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
72 + 20 = ______
65 + 10 = ______
8 × 10 = ______
1 × 10 = ______
13 + 10 = ______
50 + 10 = ______
9 × 10 = ______
21 + 20 = ______
73 − 10 = ______
62 + 10 = ______
24 + 10 = ______
76 + 10 = ______
3 × 10 = ______
96 − 10 = ______
90 − 10 = ______
66 + 10 = ______
41 + 10 = ______
5 × 10 = ______
83 + 10 = ______
47 − 10 = ______
