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
24 − 10 = ______
84 + 20 = ______
77 + 20 = ______
5 × 10 = ______
3 × 10 = ______
68 − 10 = ______
32 + 20 = ______
83 + 10 = ______
39 + 10 = ______
30 + 10 = ______
79 + 20 = ______
84 + 10 = ______
78 + 20 = ______
7 × 10 = ______
14 + 20 = ______
25 − 10 = ______
47 − 10 = ______
14 + 10 = ______
93 − 10 = ______
44 − 10 = ______
