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 = ______
12 + 10 = ______
99 − 10 = ______
5 × 10 = ______
41 − 10 = ______
13 + 20 = ______
7 × 10 = ______
31 + 10 = ______
44 + 10 = ______
83 − 10 = ______
8 × 10 = ______
45 − 10 = ______
84 − 10 = ______
70 + 10 = ______
15 + 20 = ______
2 × 10 = ______
60 − 10 = ______
72 + 10 = ______
32 − 10 = ______
1 × 10 = ______
