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
13 + 20 = ______
7 × 10 = ______
83 − 10 = ______
29 + 20 = ______
26 + 10 = ______
4 × 10 = ______
51 − 10 = ______
80 + 10 = ______
2 × 10 = ______
39 − 10 = ______
83 + 10 = ______
88 − 10 = ______
53 − 10 = ______
9 × 10 = ______
51 + 20 = ______
84 + 10 = ______
65 − 10 = ______
35 + 10 = ______
1 × 10 = ______
38 − 10 = ______
